1 John 3:22

And yet the passages are true which he goes on to adduce by way of answer, saying: “The Saviour in the gospel declares, ‘Blessed are the pure in heart; for they shall see God.’ David also says, ‘Who shall ascend into the hill of the Lord? or who shall stand in His holy place? He that is innocent in his hands, and pure in his heart;’ and again in another passage, ‘Do good, O Lord, unto those that be good and upright in heart.’ So also in Solomon: ‘Riches are good unto him that hath no sin on his conscience;’ and again in the same book, ‘Leave off from sin, and order thine hands aright, and cleanse thy heart from wickedness.’ So in the Epistle of John, ‘If our heart condemn us not, then have we confidence toward God; and whatsoever we ask, we shall receive of Him.’” For all this is accomplished by the will, by the exercise of faith, hope, and love; by keeping under the body; by doing alms; …

I suppose, too, that there is a difference between one who is upright in heart and one who is clean in heart. A man is upright in heart when he “reaches forward to those things which are before, forgetting those things which are behind” so as to arrive in a right course, that is, with right faith and purpose, at the perfection where he may dwell clean and pure in heart. Thus, in the psalm, the conditions ought to be severally bestowed on each separate character, where it is said, “Who shall ascend into the hill of the Lord? or who shall stand in His holy place? He that is innocent in his hands, and clean in his heart.” He shall ascend, innocent in his hands, and stand, clean in his heart, the one state in present operation, the other in its consummation. …

4. “Beloved, if our heart think not ill of us, we have confidence towards God:”, What meaneth, “If our heart think not ill”? If it make true answer to us, that we love and that there is genuine love in us: not feigned but sincere; seeking a brother’s salvation, expecting no emolument from a brother, but only his salvation, “we have confidence toward God: and whatsoever we ask, we shall receive of Him, because we keep His commandments.”, Therefore, not in the sight of men, but where God Himself seeth, in the heart, “we have confidence,” then, “towards God: and whatsoever we ask, we shall receive of Him:” howbeit, because we keep His commandments. What are “His commandments”? Must we be always repeating? “A new commandment give I unto you, that ye love one another.” It is charity itself that he speaks of, it is this that he enforces. …