How can I sing this psalm? Do I walk ‘along the straight path’? Clearly, the psalmist is exaggerating. Is he daring to challenge God’s scrutiny? After all, the psalmist asks for mercy because he feels he needs it. We certainly do too.
Paul has an experience similar to the one described in the psalm: even if you have a good conscience, that is not enough to justify you (1 Cor 4:4). This psalm is not for those who boast in their works but for those who submit themselves to God’s scrutinizing and purifying gaze, for those who trust in God.
Let us adopt the prayer of the just that affirms his faithfulness. Let us not rely on our own merits, like the Pharisee. Instead, let us thank this new person we have become through baptism: Christ has purified and enriched us.