Charles H. Spurgeon on Psalms 18:25

"With the merciful thou wilt shew thyself merciful; with an upright man thou wilt shew thyself upright." "An upright" —the same word is oft translated "perfect," he is good throughout, though not thoroughly; not one that personates religion, but that is a religious person. He is perfect, because he would be so. So Noah is termed (Genesis 6:9); "Noah was a just man and perfect (i.e., upright) in his generation:" he was a good man in a bad age. He was like a glowing spark of fire in a sea of water, which is perfect goodness; and therefore the Holy Ghost doth so hang upon his name, as if he could not give over —it is an excellent preacher's observation —verse 8, "But Noah was a just man and perfect in his generations, and Noah walked with God. And Noah found grace in the eyes of the Lord. These are the generations of Noah: Noah begat three sons." Noah, Noah, Noah, I love the sound of thy name; and so are all your names precious to God, though hated by men, if the name of God be dear and sweet to you. 'Tis also sometimes translated "plain." Genesis 25:27. Jacob was (Hebrew), "a plain," that is, an upright man, "dwelling in tents." Esau was "a cunning hunter," but Jacob was a plain man without welt or gard; you might well know his heart by his tongue, save once when Rebekah put a cunning trick into his head, otherwise he was a most "upright," downright man. And the plain meaning of it is, a simple, cordial, unfeigned, and exact man: this is the man we are looking for. "Man." This substansive the Hebrews use to drown in the adjective, but here the Holy Ghost exhibits a word, and a choice one too, signifying a strong, valiant man; the same word (Psalm 45:3), "O mighty man!" that's meant of our Lord Christ, who was a most strong and valiant man, that could meet the wrath of God, the malice of the devil, and the sin of man, in the face, and come off with triumph. And so the Dutch translate this clause in 2 Samuel 22.: "With the right valiant person, thou behavest thyself upright." In short, if the words were literally translated, they run thus: —a man of uprightness: that is, every way you behold him, an upright man: like an even die, cast him which way you will he will be found square and right; a stiff and strong man to tread down both lusts within and temptations without; an Athanasius contra mundum, a Luther contra Roman; this is a man of an excellent spirit, and such is our upright man. "Thou wilt shew thyself upright," or, "wilt be upright with him;" for one word in the Hebrew makes all these six, "Thou wilt upright it with him." If men will deal plainly with God, he will deal plainly with them. He that is upright in performing his duty shall find God upright in performing his promises. It is God's way to carry to men as they carry to him. If thou hast a design to please him, he will have a design to please thee; if thou wilt echo to him when he calls, he'll echo to thee when thou callest. On the other side; if a man will wrestle with God, he will wrestle with him; if thou wilt be fast and loose with him, and walk frowardly towards him, thou shalt have as good as thou bringest; if thou wilt provoke him with never-ending sins, he will pursue thee with never-ending torments; if thou wilt sin in tuo eterno, thou must suffer in suo eterno, and every man shall find like for like. . . . An upright heart is single without division. Unto an hypocrite there be "gods many and lords many," and he must have an heart for each; but to the upright there is but one God the Father, and one Lord Jesus Christ, and one heart will serve them both. He that fixes his heart upon the creatures, for every creature he must have an heart, and the dividing of his heart destroys him. Hosea 10:2. Worldly profits knock at the door, he must have an heart for them; carnal pleasures present themselves, he must have an heart for them also; sinful preferments appear, they must have an heart too —Necessariorum numerus parvus, opinionum nullus; of necessary objects the number is few, of needless vanities the number is endless. The upright man hath made choice of God and hath enough. —Richard Steele.