With My Own Hand

I, Paul, write this greeting with my own hand. (1 Corinthians 16:21 ESV)

See with what large letters I am writing to you with my own hand. (Galatians 6:11 ESV)

I, Paul, write this greeting with my own hand. Remember my chains. Grace be with you. (Colossians 4:18 ESV)

I, Paul, write this greeting with my own hand. This is the sign of genuineness in every letter of mine; it is the way I write. (2 Thessalonians 3:17 ESV)

I, Paul, write this with my own hand: I will repay it - to say nothing of your owing me even your own self. (Philemon 1:19 ESV)

An interesting observation about the Apostle Paul by Joel Arnold in Lecture 4—What books belong in our Bible? - YouTube.