Who [is] wise, and he shall understand these [things]?
and he shall know them?
&c.] Contained in this book, and particularly in this chapter; which expresses so much of the goodness of God and grace of Christ to Israel; though it may be applied to the whole Scripture, and to all the mysteries and doctrines of the Gospel, respecting Christ and his grace; and be a recommendation of these to the consideration of every wise and prudent man; where he will find enough to exercise his wisdom and understanding; though he need not be discouraged in his search and inquiry into them. It suggests as if there were but few such wise persons, and that they are the only wise men that do know and understand these things; and all others are but fools, let them be thought as wise as they will: for the ways of the Lord [are] right;
straight, plain, even, according to the rules of, justice and equity; there is no unrighteousness in them; none in the ways in which he himself walks; either in his ways and methods of grace, his decrees and purposes, his counsels and covenant; or in his providential dispensations; nor in those he directs others to walk in, the paths of faith and doctrine; or the ways of his commandments: and the just shall walk in them;
such as are, justified by the righteousness of Christ, and have ills grace wrought in them, and live righteously; these walk, and continue to walk, in the ways of God; which shows that the doctrine of justification by Christ's implored righteousness is no licentious doctrine: but the transgressors shall fall therein;
the transgressors of the law of God, not being used to his ways, as Kimchi's father observes, stumble in them and fall; or rather, as Jarchi and the Targum, they fall into hell, into ruin and destruction, because they walk not in them; though the sense seems to be, that as Christ himself, so his ways and his word, his doctrines and his ordinances, are stumbling blocks to wicked men, at which they stumble, and fall, and perish; see ( Luke 2:34 ) ( Romans 9:33 ) ( 1 Peter 2:8 ) .