LDS, Mormons, and Jesus Christ being a polygamist and having children? (because it is a righteous law.)?

(1 Corinthians 2:1-5) 2 And so I, when I came to YOU, brothers, did not come with an extravagance of speech or of wisdom declaring the sacred secret of God to YOU. 2 For I decided not to know anything among YOU except Jesus Christ, and him impaled. 3 And I came to YOU in weakness and in fear and with much trembling; 4 and my speech and what I preached were not with persuasive words of wisdom but with a demonstration of spirit and power, 5 that YOUR faith might be, not in men’s wisdom, but in God’s power.