43:1 The psalmist wrote as though most of the people in his nation had turned against him. He also referred to one opponent in particular. If David wrote this psalm, he may have done so when he fled from Absalom.
43:2 God had apparently deserted His servant who relied on Him for strength. His enemy had the upper hand.
43:3 God's light is the revelation of His will that brings understanding and life. His truth rests in His Word that reveals that will. The psalmist prayed for God's guidance through His Word that would bring him back to Mt. Zion, the place where David's tabernacle stood.