1 Corinthians 9:21-22

9:21 To those free from the law I became like one free from the law (though I am not free from God’s law but under the law of Christ) to gain those free from the law. 9:22 To the weak I became weak in order to gain the weak. I have become all things to all people, so that by all means I may save some.

1 Corinthians 13:11

13:11 When I was a child, I talked like a child, I thought like a child, I reasoned like a child. But when I became an adult, I set aside childish ways.