Do good, O LORD, unto [those that be] good, and [to them that are] upright in their hearts.
Ver. 4. Do good, O Lord, unto those that be good] But afflicted by those men of thy hand, Psalms 17:14, who are the rod in thine hand, Isaiah 10:5. Do good in thy good pleasure (for nothing can be claimed by the very best) to such, according to thy promise, Psalms 125:3, which here I put in suit for them; let the Lord be with the good, 2 Chronicles 19:11 .
And to them that are upright in their hearts] For such only are good indeed, and approved in Christ, as was Apelles, Romans 16:10, and Nathanael, John 1:47, notwithstanding their infirmities. Hypocrisy imbaseth the purest metal, turneth gold into rusty iron; sincerity doth the contrary by a divine kind of alchemy.