There is a sweet and profitable lesson taught in Psalm 62 and 63. The heart is ever prone to divide its confidence between God and the creature. This will never do. We must "wait... only upon God." "He only" must be our "rock" and our "salvation" and our "defense." This is Psalm 62.
Then we are frequently tempted to look to human aid first, and when that fails we look to God. This will never do either. He must be our first as well as our only resource.
"O God, Thou art my God; early will I seek Thee." This is the way in which the heart should ever treat the blessed God. This is the lesson of Psalm 63. When we have learned the blessedness of seeking God "only," we should be sure to seek Him "early."