Psalm 103 is a psalm of pure praise. David encourages praises from himself,[vv.1-5] from the people of Israel, [vv.6-18] and even from the angels and hosts of heaven. [vv.19-22]. Last week in verses 1-5 we saw David preparing himself to praise by remembering all of the benefits of the Lord. In verse six he moves from personal to general statements about God's goodness; from individual reasons to praise to communal reasons to praise.
Praise and thanksgiving do not come naturally to us in our fallen condition. What comes to our
hearts and our lips with ease is complaining about what we don’t have and making excuses for our shortcomings. This happens because we forget who God is and what he has done for us.