Psalm 145 praises God for His mercy toward the poor, the weak, and the sick...
Psalm 145 praises God for His mercy toward the poor, the weak, and the sick—toward those whom people despise or forget, including princes and sons of men. But let us consider: how does God most often help us in our needs? Through other people, of course! Addressing the Christians of Corinth, the Apostle Paul calls them to help the needy community in Jerusalem and thus reveal God’s concern for their needs. The fact that the Corinthians do not know the brothers in Jerusalem personally brings them closer to fulfilling Christ’s astonishing commandment (Matt 5:43-48) and means living not according to the flesh but according to the spirit.
145 This also is an alphabetical psalm. In it David praises God for his greatness, Psa 145:1-7. For his goodness and everlasting kingdom, Psa 145:8-13. For his providence, Psa 145:14-16. For his mercy to his servants, Psa 145:17-21. David's psalm of praise.
145:14 All - All that look up to him for help.
145:15 All - Of all living creatures. Wait - Expect their supplies wholly from thy bounty. Expectation is here figuratively ascribed to brute creatures.
145:18 Nigh - To answer their prayers. In truth - With an upright heart.