30:6 David had evidently become self-confident and had forgotten his complete dependence on the Lord (cf. John 15:5). Prosperity often tempts us with a false sense of our security (cf. Prov. 1:32; Jer. 22:21), and David slipped here. We should never conclude that because we are presently experiencing peace and prosperity these conditions will inevitably continue.
30:7 Now that David had regained a more realistic view of his dependence on God he acknowledged that it was only the Lord's blessing that made him secure. The figure of a mountain to represent a kingdom occurs elsewhere in Scripture (cf. Isa. 2:2; 41:15; Jer. 51:25; Dan. 2:35, 44; Rev. 17:9). God's hiding His face pictures the removal of blessing and watch-care.
30:8-10 David had prayed for the Lord to be gracious to him. He had based his request on the fact that if God allowed him to die he would not be able to glorify the Lord with his public praises any longer. Consequently David would not be able to honor God among His people. David based his petition on the glory of God, not on his own selfish desires (cf. James 4:2-3).
