Verses with the word author in the New Testament (3 verses):

1 Corinthians 14:33
For God is not the author of confusion, but of peace, as in all churches of the saints.

Hebrews 5:9
And being made perfect, he became the author of eternal salvation unto all them that obey him;

Hebrews 12:2
Looking unto Jesus the author and finisher of our faith; who for the joy that was set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God.