Charles H. Spurgeon on Psalms 121:5

Keeper. Shade. The titles of God are virtually promises. When he is called a sun, a shield, a strong tower, a hiding place, a portion. The titles of Christ, light of the world, bread of life, the way, the truth, and life; the titles of the Spirit, the Spirit of truth, of holiness, of glory, of grace, and supplication, the sealing, witnessing Spirit; faith may conclude as much out of these as out of promises. Is the Lord a sun? then he will influence me, etc. Is Christ life? then he will enliven me, etc. —David Clarkeon, 1621-1686.