Proverbs 20:11

11 Even a child maketh himself known by his conduct, Whether his dispostion be pure and whether it be right. If מעלל may be here understood after the use of עולל, to play, to pass the time with anything, then גּם neht refers thereto: even by his play (Ewald). But granting that מעולל [children], synon. with נער, had occasioned the choice of the word מעלל (vid., Fleischer on Isa 3:4), yet this word never means anything else than work, an undertaking of something, and accomplishing it; wherefore Bttcher proposes מעוּליו, for מעלוּל may have meant play, in contradistinction to מעלל ot noitcni. This is possible, but conjectural. Thus gam is not taken along with b'amalalav. That the child also makes himself known by his actions, is an awkward thought; for if in anything else, in these he must show what one has to expect from him. Thus gam is after the syntactical method spoken of at Pro 17:26; Pro 19:2, to be referred to נער (also the child, even the child), although in this order it is referred to the whole clause. The verb נכר is, from its fundamental thought, to perceive, observe from an ἐναντιόσημον: to know, and to know as strange, to disown (vid., under Isa 3:9); the Hithpa. elsewhere signifies, like (Arab.) tankkar, to make oneself unknowable, but here to make oneself knowable; Symmachus, ἐπιγνωρισθήσεται, Venet. γνωσθήσεται. Or does the proverb mean: even the child dissembles in his actions (Oetinger)? Certainly not, for that would be a statement which, thus generally made, is not justified by experience. We must then interpret 11b as a direct question, though it has the form of an indirect one: he gives himself to be known, viz., whether his disposition be pure and right. That one may recognise his actions in the conduct of any one, is a platitude; also that one…

The tree is known by its fruits, a man by his doings, even a young tree by its first fruits, a child by his childish things, whether his work be clean only, appearing good (the word is used Pro 16:2), or whether it be right, that is, really good. This intimates, 1. That children will discover themselves. One may soon see what their temper is, and which way their inclination leads them, according as their constitution is. Children have not learned the art of dissembling and concealing their bent as grown people have. 2. That parents should observe their children, that they may discover their disposition and genius, and both manage and dispose of them accordingly, drive the nail that will go and draw out that which goes amiss. Wisdom is herein profitable to direct.