1 Timothy 4:16

1 Corinthians 3:10-11 NIV
By the grace God has given me, I laid a foundation as a wise builder, and someone else is building on it. But each one should build with care. For no one can lay any foundation other than the one already laid, which is Jesus Christ.

Titus 1:9 NIV
He must hold firmly to the trustworthy message as it has been taught, so that he can encourage others by sound doctrine and refute those who oppose it.

Titus 2:7 NIV
In everything set them an example by doing what is good. In your teaching show integrity, seriousness