Psalms 139:5

"Behold Thou, Lord, hast known all my last doings, and the ancient ones" [Psalm 139:5]. You have known my latest doings, when I fed swine; You have known my ancient doings, when I asked of You my portion of goods. Ancient doings were the beginnings to me of latest ills: ancient sin, when we fell; latest punishment, when we came into this toilsome and dangerous mortality. And would that this may be "latest" to us; it will be, if now we will to return. For there is another "latest" for certain wicked ones, to whom it shall be said, "Go ye into everlasting fire." [Matthew 25:41] ..."You have fashioned me, and hast laid Your hand upon me." "Fashioned me," where? In this mortality; now, to the toils whereunto we all are born. For none is born, but God has fashioned him in his mother's womb; nor is there any creature, whereof God is not the Fashioner. But "You have fashioned me" in this toil, "and laid Your hand upon me," Your avenging hand, putting down the proud. For thus healthfully has He cast down the proud, that He may lift him up humble.

Thou hast beset me behind and before,.... Art on every side of me, all around me, like one besieged in a strait place; so that there is nothing I can think, say, or do, but what is known unto thee.

Thou hast beset me behind and before. As though we were caught in an ambush, or besieged by an army which has wholly beleaguered the city walls, we are surrounded by the Lord. God has set us where we be, and beset us wherever we be. Behind us there is God recording our sins, or in grace blotting out the remembrance of them; and before us there is God foreknowing all our deeds, and providing for all our wants. We cannot turn back and so escape him, for he is behind; we cannot go forward and outmarch him, for he is before. He not only beholds us, but he besets us; and lest there should seem any chance of escape, or lest we should imagine that the surrounding presence is yet a distant one, it is added, —And laid thine hand upon me. The prisoner marches along surrounded by a guard, and gripped by an officer. God is very near; we are wholly in his power; from that power there is no escape. It is not said that God will thus beset us and arrest us, but it is done—"Thou hast beset me." Shall we not alter the figure, and say that our heavenly Father has folded his arms around us, and caressed us with his hand It is even so with those who are by faith the children of the Most High.

Thou hast beset me behind and before - אחור וקדם צרתני achor vekodam tsartani, “The hereafter and the past, thou hast formed me.” I think Bishop Horsley’s emendation here is just, uniting the two verses together. “Behold thou, O Jehovah, knowest the whole, the hereafter and the past. Thou hast formed me, and laid thy hand upon me.”

Thou hast beset me behind and before - The word rendered “beset” - צור tsûr - means properly to press; to press upon; to compress. It has reference commonly to the siege of a city, or to the pressing on of troops in war; and then it comes to mean to besiege, hem in, closely surround, so that there is no way of escape. This is the idea here - that God was on every side of him; that he could not escape in any direction. He was like a garrison besieged in a city so that there was no means of escape. There is a transition here (not an unnatural one), from the idea of the Omniscience of God to that of His Omnipresence, and the remarks which follow have a main reference to the latter. And laid thine hand upon me - That is, If I try to escape in any direction I find thine band laid upon me there. Escape is impossible.