Albert Barnes Commentary Psalms 140:4

"Keep me, O Jehovah, from the hands of the wicked; Preserve me from the violent man: Who have purposed to thrust aside my steps." — Psalms 140:4 (ASV)

Keep me, O Lord, from the hands of the wicked ... - See the notes at Psalms 71:4. This is a repetition of the prayer in Psalms 140:1.

Who have purposed to overthrow my goings - To thrust me down as I go; to defeat my plans; to destroy me. They endeavor to prevent my accomplishing what I had designed to do.