PSALM 38

DO NOT FORSAKE ME, O LORD

David pleads with God to not rebuke him in anger or discipline him with wrath. David is aware of his sin, so he confesses and repents before God. David asks God to save him and be near him, regardless of the weight of his sin. When his strength has failed him, he relies on God to be his strength and salvation. 

Psalm 38:9 - O Lord, all my longing is before you; my sighing is not hidden from you.