Christ, the Keeper.

“Unto Him that is able to keep you from falling” (Jude 24).
The natives of India used to say that when Sir Henry Lawrence looked twice to heaven, and then to earth, he knew what to do. The 121st Psalm stands out in striking contrast to the previous one, where the Psalmist is in distress and loneliness, as he is surrounded by enemies.
But now we find him rising from the earth and his own despair to the height of the Lord’s preserving care. Like the brave general above named, he knows what to do, for the Lord is his Constant Keeper. The Lord is seen in no less than nine different characters. We behold Him as the Almighty Helper (Psalm 121: 2) ; as the Sure Upholder (Psalm 121: 3); as the Constant Keeper (Psalm 121: 3); as the Vigilant Watchman (Psalm 121: 4); as the Assuring Preserver (Psalm 121 5); as the Sheltering Protector (Psalm 121: 5 & 6); as the Absolute Guardian (Psalm 121: 7); as the Personal Sustainer (Psalm 121: 7); and as the Unfailing Friend (Psalm 121 8).
(1) Almighty Helper (Psalm 121: 2). If we look to the marginal reading of verse one, he asks the question, “Shall I look to the hills?” but comes to the conclusion that his help comes from Him who made the hills.
(2) Sure Upholder (Psalm 121: 3). “He will not suffer thy foot to be moved.”
(3) Constant Keeper (Psalm 121: 3). “He that keepeth thee will not slumber.”
(4) Vigilant Watchman (Psalm 121: 4). “He that keepeth Israel shall neither slumber nor sleep.”
(5) Assuring Preserver (Psalm 121: 5). “The Lord is thy Keeper.”
(6) Sheltering Protector (Psalm 121: 5 & 6). “The Lord is thy Shade,”etc.
(7) Absolute Guardian (Psalm 121: 7). “The Lord shall preserve thee from all evil.”
(8) Personal Sustaincr (Psalm 121: 7). His personal thought of us in our personal need is seen if we ponder the
seven “Thys” and three “Thees,” all of which are wrapped up in “He shall preserve thy soul.”
(9) Unfailing Friend (Psalm 121: 8). “The LORD shall preserve thy going out and thy coming in from this time forth, and even for evermore.”
Christ keeps us for Himself from the world ; He keeps us in Himself from sin ; He keeps us by Himself from Satan; and He keeps us with Himself for fellowship.
~ Pearls, Points, and Parables; F.E. Marsh, 1908