The psalmist's request for God to open his lips signifies a longing for divine assistance in expressing praise. This plea comes from a place of humility and recognition of human limitations. The verse suggests that genuine worship and praise are not merely human efforts but are inspired and enabled by God. It underscores the belief that God is the source of all good things, including the ability to worship Him rightly.
In the broader context of the psalm, which is a prayer of repentance, this verse shows a turning point where the psalmist moves from seeking forgiveness to expressing a desire to praise God. It reflects a transformation from guilt and sorrow to hope and joy. The psalmist understands that true praise is a response to God's mercy and forgiveness, and it is only through God's help that one can truly declare His greatness. This verse encourages believers to seek God's help in all aspects of life, especially in their spiritual expressions, ensuring that their praise is sincere and heartfelt.