In this wisdom psalm, the psalmist opens every part of his life to God. He invites God to examine his thoughts, actions, and words. Even though life is difficult, he wants to grow in wisdom so that he does not share in the judgment of the wicked (Psalm 141:5; 142:3; 143:8, 10; 144:3–4).
The psalmist also knows that he cannot escape from the Lord. His stress fades as he remembers that God has cared for him with love, even before he was born (Psalm 139:13–18). He ends by asking God to keep examining him and to guide him on the path of wisdom (Psalm 139:23–24).