Giobbe 33:14

For God speaketh once, yea twice, [yet man] perceiveth it not.

Ver. 14. For God speaketh once, yea twice] He loveth to foresignify; and although not bound to it, yet he usually gives warning; as "not willing that any should perish, but that all should come to repentance," 2 Pietro 3:9. For which purpose God saith Elihu here useth two ways to nurture his children; the one more mild, to keep them from falling into sin, Giobbe 33:15,18, the other more rigorous, when they have committed wickedness, to bring them to ammendment of life, Giobbe 33:19,21, &c.

Yet man perceiveth it not] Prae crassitie, et supinitate (ut ita dicam) sua; through his forlorn dullness and heedlessness, his singular inattention and inadvertence. Though God say, as once, "O generation, see ye the word of the Lord," Geremia 2:31, "Hear ye the rod, and who hath appointed it," Michea 6:9, yet man is not only naturally averse, but adverse, to listen, or lay to heart anything, till it light on his hide, to believe till he feeleth; yea, to his natural dullness he soon addeth a habitual hardness; to his sinews of iron brows of brass, Isaia 48:4.

This is fearful, Atti degli Apostoli 28:27, and yet common to all, whose hard hearts God is not pleased to soften with the oil of his grace and to soak in the blood of his Son, that they may be supple and soluble.