What does the Bible say about waiting upon God?

Psalm 62 teaches us the importance of waiting upon God, emphasizing that our expectation should be solely from Him. David, in the midst of his trials, reassures his soul to wait upon God, recognizing Him as his rock, salvation, and defense. This waiting is not passive but active, involving trust in God's promises and a reaffirmation of faith even amid adversaries. The spiritual exercise of waiting includes relying on God's Word and trusting His timing, knowing that He is faithful to fulfill His promises.