Three times in this psalm, the author says to give thanks to Yahweh. He praises the Lord for all He has done to through His steadfast love and faithfulness to answer the psalmist when he called. Even kings will give thanks to the Lord when they hear of the Lord's faithfulness. Is the psalmist thinking a little highly of himself, or is there One for whom the Lord worked in faithful steadfastness that still causes kings to raise their thanks to Yahweh?