Marriage is another blessing from Allah so that man & women can archive true love Compassion of each other though their married life specialty when the couple run their life according to the rule, regulation of their creator they will have lovely peaceful life & will be successful on hereafter.
However if we observe some of them verses below then we will be able to understand what is our obligation regarding this issue of marriage.
The Quran 2:221
Wed not idolatresses till they believe; for lo! a believing bondwoman is better than an idolatress though she please you; and give not your daughters in marriage to idolaters till they believe, for lo! a believing slave is better than an idolater though he please you. These invite unto the Fire, and Allah invited unto the Garden, and unto forgiveness by His grace, and expounded His revelations to mankind that haply they may remember
The Quran 2:235
There is no sin for you in that which ye proclaim or hide in your minds concerning your troth with women. Allah knoweth that ye will remember them. But plight not your troth with women except by uttering a recognised form of words. And do not consummate the marriage until (the term) prescribed is run. Know that Allah knoweth what is in your minds, so beware of Him; and know that Allah is Forgiving, Clement.
The Quran 4:3
If ye fear that ye shall not be able to deal justly with the orphans, marry women of your choice, two, or three, or four; but if ye fear that ye shall not be able to deal justly (with them), then only one, or that which your right hands possess. That will be more suitable, to prevent you from doing injustice.
The Quran 4:4
And give unto the women (whom ye marry) free gift of their marriage portions; but if they of their own accord remit unto you a part thereof, then ye are welcome to absorb it (in your wealth).
The Quran 4:6
Make trial of orphans until they reach the age of marriage; if then ye find sound judgment in them, release their property to them; but consume it not wastefully, nor in haste against their growing up. If the guardian is well-off, let him claim no remuneration, but if he is poor, let him have for himself what is just and reasonable. When ye release their property to them, take witnesses in their presence: but all-sufficient is Allah in taking account
The Quran 4:19
O ye who believe! ye are forbidden to inherit women against their will. Nor should ye treat them with harshness, that ye may take away part of the dower ye have given them,¯ except where they have been guilty of open lewdness; on the contrary live with them on a footing of kindness and equity. If ye take a dislike to them, it may be that ye dislike a thing and Allah brings about through it a great deal of good.
The Quran 4:22
And marry not women whom your fathers married,¯ except what is past: it was shameful and odious,¯ an abominable custom indeed
The Quran 4:23
Forbidden unto you are your mothers, and your daughters, and your sisters, and your father's sisters, and your mother's sisters, and your brother's daughters and your sister's daughters, and your foster-mothers, and your foster-sisters, and your mothers-in-law, and your step-daughters who are under your protection (born) of your women unto whom ye have gone in - but if ye have not gone in unto them, then it is no sin for you (to marry their daughters) - and the wives of your sons who (spring) from your own loins. And (it is forbidden unto you) that ye should have two sisters together, except what hath already happened (of that nature) in the past. Lo! Allah is ever Forgiving, Merciful.
The Quran 4:24
And all married women save those whom your right hands possess. It is a decree of Allah for you. Lawful unto you are all beyond those mentioned, so that ye seek them with your wealth in honest wedlock, not debauchery. And those of whom ye seek content (by marrying them), give unto them their portions as a duty. And there is no sin for you in what ye do by mutual agreement after the duty (hath been done). Lo! Allah is ever Knower, Wise.
The Quran 4:25
If any of you have not the means wherewith to wed free believing women, they may wed believing girls from among those whom your right hands possess: and Allah hath full knowledge about your Faith. Ye are one from another: wed them with the leave of their owners, and give them their dowers, according to what is reasonable: they should be chaste not lustful nor taking paramours: when they are taken in wedlock, if they fall into shame, their punishment is half that for free women. This (permission) is for those among you who fear sin; but it is better for you that ye practise self-restraint: And Allah is Oft-Forgiving, Most Merciful
The Quran 4:127
They ask thy instruction concerning the women. Say: Allah doth instruct you about them: and (remember) what hath been rehearsed unto you in the Book, concerning the orphans of women to whom ye give not the portions prescribed and yet whom ye desire to marry, as also concerning the children who are weak and oppressed: that ye stand firm for justice to orphans. There is not a good deed which ye do, but Allah is well-acquainted therewith.
The Quran 24:33
Let those who find not the wherewithal for marriage keep themselves chaste, until Allah gives them means out of His grace. And if any of your slaves ask for a deed in writing (to enable them to earn their freedom for a certain sum) give them such a deed if ye know any good in them; yea, give them something yourselves out of the means which Allah has given to you. But force not your maids to prostitution when they desire chastity, in order that ye may make a gain in the goods of this life. But if anyone compels them, yet after such compulsion, is Allah Oft-Forgiving, Most Merciful (to them).
The Quran 25:54
It is He Who has created man from water: then has He established relationships of lineage and marriage: for thy Lord has power
The Quran 28:27
He said: "I intended to wed one of these my daughters to thee on condition that thou serve me for eight years; but if thou complete ten years, it will be (grace) from thee. But I intend not to place thee under a difficulty: thou wilt find me, indeed, if Allah wills one of the righteous."
The Quran 60:10
O ye who believe! when there come to you believing women refugees, examine (and test) them: Allah knows best as to their Faith: if ye ascertain that they are Believers, then send them not back to the Unbelievers. They are not lawful (wives) for the Unbelievers, nor are the (Unbelievers) lawful (husbands) for them. But pay the Unbelievers what they have spent (on their dower). And there will be no blame on you if ye marry them on payment of their dower to them. But hold not to the guardianship of unbelieving women: ask for what ye have spent on their dowers and let the (Unbelievers) ask for what they have spent (on the dowers of women who come over to you). Such is the command of Allah: He judges (with justice) between you: and Allah is Full of Knowledge and Wisdom.
POINTS FROM ABOVE VERSE
[2:221 Believer [male/female] must NOT marry idolatresses. The verse also indicate that the parent do have some rights regarding selecting husband for their child
[2:235] Indicate the divorced /widow can be offer for marriage but have get married after the time. Also it indicates that one can JUST like each other & it is NOT sin to keep this LIKING in mind.
[4:3] this verse clearly talk about the ORPHANS, it is NOT taking about normal condition therefore we are ONLY allowed to marry 2/3/4 if such condition arrive Otherwise ONLY ONE.
[4:4] this indicate to give Women something as gift [Dower] but if they happily like to share anything from it THEN no problem.
[4:6] This clearly indicate ONE have to have sound judgment and reach a age where they can look after their own affair, then they should get/given marriage.
[4:19] It is forbidden keep women in wedlock against their will & treat them harshly if they [women] want to divorce then man can retake back the dower
[4:22] Believer should not marry women whom His father married previously [knowingly]
[4:23] This verse clearly indicating whom believer cannot marry [FORBIDDEN] MOTHER, DAUGHTER, SISTER, father's SISTER, mother's SISTER, brother's DAUGHTERS, sister's DAUGHTER, step DAUGHTERS foster MOTHER, foster SISTER, mothers-IN-LAW, step-DAUGHTER & Son WIVES , Two SISTERS [together]
[4:24] And all married women & EXEPT whom your right hands possess. So anyone not mention are allowed to wedlock provide giving them their due [dower]
[4:25]Believer may marry the salve girl if they have problem to wedlock with free women but have give them dower and if they commit any shame then their punishment is half compare to believing women.
[28:27] this indicate wife father can impose some condition to husband before offering his daughter.
[60:10] the believer should protect them women whom inter in DEEN and must NOT hand them over back to the Unbeliever since they are NOT lawful as wife Unbelievers. And must pay the [dower] to Unbelievers to free her. And neither to hold any guardianship to any unbelieving women.
I understand the marriage is a solemn covenant,that is because of the the term [Uqdatun Means: a knot, a tie, a bond, an obligation Aqdun" Means: a contract, a compact, a covenant, an agreement, a treaty, an engagement ] also it is a strong commitment between husband & wife in order to lead a life of companionship.And to fulfil such obligation it defiantly require adulthood & sensible age as indicated by them verses [ 4:6 , 6/152, 17/34, 22/5, 28/14, 40/67].
Also it is very important that husband & wife love each other therefore it is also important that they like & know each other before the marriage [as according to Quranic Law] also giving gift [dower] do increase love/liking.
Moreover the Quran does NOT laid down any specific ceremony for marriage, neither it mention of any special person who solemnises [NIKHA].
But since this is also a contract, therefore whatever laws are laid down by the government for the ratification of contracts, this contract should also be ratified [confirmed] according to the prevalent laws. It is equally important to proclaim the solemnisation of Nikha. And must NOT keep it secret otherwise it will create doubt on others people mind. Also believer should NOT do any kind of marriage ceremony which instructed by other Manmade religion as their marriage activity obligation.
SOME POINTS TO REMEMBER
1 Muslim should marry only whom Allah permitted, must avoid idol worshiper
2 Muslim male should conceder, give first priority to Chaste believing woman but they are also allow to marry CHASTE women from the people whom received the revelation before.
3 Ages of both person should be mature
4 Both should talk to each other before marriage, but not secretly
5 Under no circumstance no force married allowed in Islam
6 Dower must paid, as agift by male to female. Method of payments which can be agreed by both party
7 Marriage contract must not be done secretly should be witnessed
9 All type of celebration allowed but must not violet Allah(swt) law by any shape or form