In Christianity:
(Matthew 19:5-6)
and said, ‘For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh’? So they are no longer two, but one. Therefore what God has joined together, let man not separate."
**
In Islam:**
(Quran 4:3)
وَإِنْ خِفْتُمْ أَلَّا تُقْسِطُوا فِي الْيَتَامَى فَانْكِحُوا مَا طَابَ لَكُمْ مِنَ النِّسَاءِ مَثْنَى وَثُلَاثَ وَرُبَاعَ فَإِنْ خِفْتُمْ أَلَّا تَعْدِلُوا فَوَاحِدَةً أَوْ مَا مَلَكَتْ أَيْمَانُكُمْ ذَلِكَ أَدْنَى أَلَّا تَعُولُوا
Notice the word فَانْكِحُوا it DOES NOT mean even marry !!!, if it means marry then that shall be written فتزوجوا, the Arabic word written in Quran is even less than marriage (you are an Arabic speaking person and you know what I mean

…).
Sam , firstly you didn’t answer my question
you said that marriage in Islam is a contract with all what an earthy contract means, while in Christianity it’s a covenant with all what a heavenly covenant means
instead of clearing out for me the differences between marriage in islam and in christianity , you calim that this verse in quran dosn’t mean marry
if you think that this verse not talking about marriage then why you quoting it .
you are talking about marriage in islam then bring for me the verses which talking about marriage
my second question
what do you think this verse talking about , if it wasn’t about marriage , what then ?
are you suggest that this verse encourage muslims to commit adultery ?
thirdly , if you have the courage to translate the defination of this word نكاح then be my guest
النكاح في اللغة: يكون بمعنى (عقد التزويج)، ويكون بمعنى (وطء الزوجة)، قال أبو علي القالي: ( فرّقت العرب فرقاً لطيفاً يعرف به موضع العقد من الوطء فإذا قالوا: نكح فلانة أو بنت فلان أرادوا عقد التزويج، وإذا قالوا نكح امرأته أو زوجته، لم يريدوا إلا الجماع والوطء ).
ومعنى النكاح في الشرع: ( تعاقد بين رجل وامرأة يقصد به استمتاع كل منهما بالآخر، وتكوين أسرة صالحة ومجتمع سليم ).
it’s meaning is marriage , if you have doubts then tell me what it means in your openion