Charles Ellicott Commentary Psalms 145:9-10

"Jehovah is good to all; And his tender mercies are over all his works. All thy works shall give thanks unto thee, O Jehovah; And thy saints shall bless thee." — Psalms 145:9-10 (ASV)

All. —This wide outlook over the world as the object, with all that it contains, of the Divine pity and love, is a noble anticipation of our Lord’s teaching in the Sermon on the Mount and is introduced in a similar manner. Just as the subjects of the kingdom of heaven should exceed the heathen in kindness and goodness, because they know the universal and impartial grace of the Father, so here the saints, the members of the covenant, are to bless Jehovah, who shows them special favor, but also lets His tender mercies flow in an unchecked stream over all His works. All Jehovah’s works confess Him, but His saints bless Him.