Charles H. Spurgeon on Psalms 125:5

Such as turn aside unto their crooked ways. All the ways of sin are called "crooked ways", and they are our own ways. The Psalmist calls them "their crooked ways"; that is, the ways of their own devising; whereas the way of holiness is the Lord's way. To exceed or do more; to be deficient or do less, than God requires, both these are "crooked ways". The way of the Lord lies straight forward, right before us. "Whoso walketh uprightly shall be saved; but he that is perverse (or crooked) in his ways shall fall at once": Pr 28:18. The motion of a godly man is like that of the kine that carried the ark: "Who took the straight way to the way of Bethshemesh, and went along the highway, lowing as they went, and turned not aside to the right hand or to the left": 1Sa 6:12. —Joseph Caryl.