Who's who.

Herman Witsius has written:

“And God is to be considered, 1st. As truly all-sufficient, for all manner of happiness, not only to himself, nay, or only to the innocent creature, but also to guilty and sinful man. He himself impressed this upon Abraham at the renewal of the covenant, when God emphatically called himself the Almighty God, or God all-sufficient, Gen xvii. 1. denotes powerful, and sometimes too in the abstract, power, as Prov. iii. 27. ויךי לא, power of thine hand, it therefore denotes him who is endowed with such power, as “that he is able to do exceeding abundantly above all that we ask, or think,” Eph. iii. 20. Without whom we can do nothing, and in whom we can do all things: יךש signifies sufficient; whether we suppose it compounded of the relative: ש, and יך, so as to denote one who is sufficient; or whether derived from ךש, signifying both a pap or breast, and desolation or ravage. If we join each of the these together and say, that God is so powerful and so sufficient, as that himself is in want of nothing, and from his plentiful breast all things derive their being, their life, and their motion: which breast being once withdrawn, all things relapse into desolation. This is what he declares himself to be, to his chosen people, in the covenant of grace, for whose benefit he is possessed of this most powerful all-sufficiency. That name therefore is often repeated to the patriarchs, as the fountain of every blessing, Gen. xxviii. 3. xxxv. 11. and xliii. 14. 2dly. As most merciful and gracious, rejoicing to communicate himself to the sinful creature, Exod. xxxiv. 6, 7. 3dly. And at the same time as most just not entering into a state of friendship with the sinner, but in a way consistent with his holiness, and after having obtained full satisfaction to his justice: for he will by no means clear the guilty. 4thly. and lastly, As most wise, having found out an admirable mixture of his mercy and justice, without infringing the rights of either. For by this means, “unto the principalities and powers in heavenly places, is made known by the church the manifold wisdom of God,” Eph. iii. 10.”

“But here men are considered, 1st. As sinners, miserable and lost in themselves, who could not be restored by their own, or by any other created power; in a word, possessed of nothing, on account of which they can please God, Ezek. xvi 1-6. Tit. iii. 3, 4. 2dly. As chosen by God to grace and glory, according to his most absolute good pleasure, and so appointed heirs of eternal life, and are that “little flock, to whom it is the Father’s good pleasure to give the kingdom,” Luke xii. 32. 3dly. As those from who Christ engaged or made satisfaction: for this ought to be considered as necessary, before ever it could be worthy of God to make mention of his grace to sinful man.”

(Witsius, Herman, The Economy of the Covenants Between God and Man, Volume 1, Kingsburg, CA: den Dulk Christian Foundation, 1990, pp. 281-282.)