Mat 6:22-23, Eph 4:17-18 | JFB | STEP | 22. The light-- rather, "the lamp." of the body is the eye: if therefore thine eye be single-- simple, clear. As applied to the outward eye, this means general soundness; particularly, not looking two ways. Here, as also in classical Greek, it is used figuratively to denote the simplicity of the mind's eye, singleness of purpose, looking right at its object, as opposed to having two ends in view. (See ). thy whole body shall be full of light-- illuminated. As with the bodily vision, the man who looks with a good, sound eye, walks in light, seeing every object clear; so a simple and persistent purpose to serve and please God in everything will make the whole character consistent and bright.

‏ Matthew 6:22-23

22. The light--rather, "the lamp."

of the body is the eye: if therefore thine eye be single--simple, clear. As applied to the outward eye, this means general soundness; particularly, not looking two ways. Here, as also in classical Greek, it is used figuratively to denote the simplicity of the mind's eye, singleness of purpose, looking right at its object, as opposed to having two ends in view. (See Pr 4:25-27).

thy whole body shall be full of light--illuminated. As with the bodily vision, the man who looks with a good, sound eye, walks in light, seeing every object clear; so a simple and persistent purpose to serve and please God in everything will make the whole character consistent and bright.

23. But if thine eye be evil--distempered, or, as we should say, If we have got a bad eye.

thy whole body shall be full of darkness--darkened. As a vitiated eye, or an eye that looks not straight and full at its object, sees nothing as it is, so a mind and heart divided between heaven and earth is all dark.

If therefore the light that is in thee be darkness, how great is that darkness!--As the conscience is the regulative faculty, and a man's inward purpose, scope, aim in life, determines his character--if these be not simple and heavenward, but distorted and double, what must all the other faculties and principles of our nature be which take their direction and character from these, and what must the whole man and the whole life be but a mass of darkness? In Luke (Lu 11:36) the converse of this statement very strikingly expresses what pure, beautiful, broad perceptions the clarity of the inward eye imparts: "If thy whole body therefore be full of light, having no part dark, the whole shall be full of light, as when the bright shining of a candle doth give thee light." But now for the application of this.

‏ Ephesians 4:17-18

17. therefore--resuming the exhortation which he had begun with, "I therefore beseech you that ye walk worthy," &c. (Ep 4:1).

testify in the Lord--in whom (as our element) we do all things pertaining to the ministry (1Th 4:1 [Alford]; Ro 9:1).

henceforth ... not--Greek, "no longer"; resumed from Ep 4:14.

other--Greek, "the rest of the Gentiles."

in the vanity, &c.--as their element: opposed to "in the Lord." "Vanity of mind" is the waste of the rational powers on worthless objects, of which idolatry is one of the more glaring instances. The root of it is departure from the knowledge of the true God (Ep 4:18, 19; Ro 1:21; 1Th 4:5).

18. More literally, "Being darkened in their understanding," that is, their intelligence, or perceptions (compare Ep 5:8; Ac 26:18; 1Th 5:4, 5).

alienated--This and "darkened," imply that before the fall they (in the person of their first father) had been partakers of life and light: and that they had revolted from the primitive revelation (compare Ep 2:12).

life of God--that life whereby God lives in His own people: as He was the life and light in Adam before the irruption of death and darkness into human nature; and as He is the life in the regenerate (Ga 2:20). "Spiritual life in believers is kindled from the life itself of God" [Bengel].

through--rather as Greek, "on account of the ignorance," namely, of God. Wilful ignorance in the first instance, their fathers not "choosing to retain God in their knowledge." This is the beginning point of their misery (Ac 17:30; Ro 1:21, 23, 28; 1Pe 1:14).

because of--"on account of."

blindness--Greek, "hardness," literally, the hardening of the skin so as not to be sensible of touch. Hence a soul's callousness to feeling (Mr 3:5). Where there is spiritual "life" ("the life of God") there is feeling; where there is not, there is "hardness."