The Apostle Paul
2 Corinthians 5:7BSB·traditional attribution

For we walk by faith, not by sight.

Geneva Bible Notes Reformed

(For we walk by faith, not by sight:) (e) Faith, of those things which we hope for, not having God presently in our physical view.

Albert Barnes Presbyterian

Verse 7. For we walk. To walk, in the Scriptures, often denotes to live, to act, to conduct [one's self] in a certain way. ; . It has reference to the fact that life is a journey, or a pilgrimage, and that the Christian is travelling to another country.

John Gill Reformed Baptist

For we walk by faith, and not by sight. Faith is a grace which answers many useful purposes; it is the eye of the soul, by which it looks to Christ for righteousness, peace, pardon, life, and salvation; the hand by which it receives him, and the foot by which it goes to him, and walks in him as it has received him; which denotes...