151.

According to the manifest purpose of God, is it right for a man to have more than one wife at the same time?

Bible: No Qur'an: Yes

Deuteronomy 17:17 – Neither shall he multiply wives to himself, that his heart turn not away.

1 Corinthians 7:2 – let every man have his own wife, and let every woman have her own husband.

An-Nisa 4:3 & 24 – 3. And if you feel that you will not deal fairly with the orphans, marry women of your choice, two or three or four... 24. And all married women are forbidden to you except those your right hand possess...

Al-Ahzab 33:21, 32-33, 38 & 50 – 21. Verily in the messenger of Allah you have a good example... 32. O you wives of the Prophet! 38. There is no reproach for the Prophet in what Allah has made his due... 50. a believing woman if she gives herself unto the Prophet and the Prophet desire to ask her in marriage, a privilege for you only, not for the rest of believers.