John Trapp on Psalms 62:12

Verſ. 12. Alſo unto thee, O Lord, belongeth mercy.] viz. To ſet thy Power a work for the good of thy people. And as theſe two, Gods Power, and Gods Mercy, are the two Pillars, the Boaz and the Jachin of every Beleever (hence Job, chap. 42.2. having ſpoken of his Power, he ſpeaketh of his thoughts of peace toward his people) ſo they are ſufficient proofs of the Doctrines before delivered, and do evince the truth of that which followeth.

For thou rendreſt to every man according to his work] viz. Judgement to the wicked, and Mercy to the righteous; where the Syriack interpreter giveth this good Note, Eſt gratia Dei ut reddat homini ſecundum opera bona, quia merces bonorum operum est exgratia. It is mercy in God to ſet his love on them that keep his Commandements, Exod. 20.6.