Men should be content with marrying one wife, multiplicity of wives cause problems including enmity, division, backbiting, fighting and quarrels. You need to be content with what you have, including your wife or husband.
Genesis 2:22-24
22 And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man. 23 And Adam said, This is now bone of my bones, and flesh of my flesh: she shall be called Woman, because she was taken out of Man. 24 Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.
God is only in support of one man and one woman union because and does not allow polygamy. The goal of monogamy by God is that husband and wife should stick to one another spiritually and otherwise.
Polygamy was not prescribed by God for David or for Solomon, they married multiple wives because of their own lust. That is why God punished them, they felt they had the power as kings and could do and undo by having as many wives as they could.
David was punished by God , the son he had out of the fruit of his fornication died. Also, Solomon was punished by God because he abused his power as a king by having seven hundred wives and three hundred concubines which made him go astray before God Almighty.
1kings 11:3
And he had seven hundred wives, princesses, and three hundred concubines: and his wives turned away his heart.