Covenant is more than an agreement , it is superior to contract, because in covenant there is an exchange of person.
That is why is marriage covenant the gift of each spouse to the other is hi/her person, they exchange person. That is why a married person must be faithful to his spouse because himself/herself no longer belong to him or her but to his/her spouse.
The covenant God made with Israel at mount sinai is picture in a marriage covenat wherein both party must be faithful to each other.
This manifest in prophet Hosea wherein God commanded Hosea to marry a prostitute.Hosea is always faithful to his wife picture God being faithful to his covenant with israel . While the prostitute wife of Hosea unfaithful pictures the unfaithfulness of israel to the covenant with God.
Thesame is true with respect to jesus and his church. Thier relationship is picture in a marriage covenant. Paul wrote that Jesus is the groom while the church is the bridegroom and we are invited into the wedding feast.Each spouse must be faithful to the other.
God is our master and we are God’s slaves.Since no slaves is above his master it follows that if God is always faithful to his covenant we must always be faithful to our marriage covenant vovs.
Muhammad married eleven women…was muhammad faithful to his marriage covenant vovs as God was faithful? or was thier no marriage vovs in which case there is fornication.
If muhammad is really the prophet of God, God will tell him His standard .His prophet must follow his standard not the standard of his arab custom.