1 Corinthians 15

28 And when all things have been subjected to Him, then the Son Himself will be made subject to Him who put all things under Him, so that God may be all in all.

1 Corinthians 14

1 Earnestly pursue love and eagerly desire spiritual gifts, especially the gift of prophecy. 2 For he who speaks in a tongue does not speak to men, but to God. Indeed, no one understands him; he utters mysteries in the Spirit. 3 But he who prophesies speaks to men for their edification, encouragement, and comfort. 4 The one who speaks in a tongue edifies himself, but the one who prophesies edifies the church.

1 Corinthians 9

19 Though I am free of obligation to anyone, I make myself a slave to everyone, to win as many as possible. 20 To the Jews I became like a Jew, to win the Jews. To those under the law I became like one under the law (though I myself am not under the law), to win those under the law. 21 To those without the law I became like one without the law (though I am not outside the law of God but am under the law of Christ), to win those without the law.