Psalms 119:167,168 - Joseph Benson’s Commentary on the Old and New Testaments

My soul hath kept thy testimonies I have not only obeyed thy commands outwardly, which a hypocrite may do for worldly ends, but I have done it from my very soul, and from a hearty love to them. For all my ways are before thee I knew I was always in thy presence, and that all my tempers, words, and works were observed by thee. For this clause seems to be added as a principal reason or motive of his obedience, which was the consideration of God's omnipresence and omniscience, and his desire to approve himself and his ways to God.