Beware lest perhaps your heart be deceived, and you depart from the Lord, and serve strange gods, and adore them:

Take heed to yourselves, that your heart be not deceived, and ye turn aside and serve other gods, and bow down to them,

'Take heed to yourselves, lest your heart be enticed, and ye have turned aside, and served other gods, and bowed yourselves to them,

But take care that your hearts are not turned to false ways so that you become servants and worshippers of other gods;

Be careful, lest perhaps your heart may be deceived, and you might withdraw from the Lord, and serve strange gods, and adore them.

Cavete ergo vobis ne seducatur cor vestrum, et recedatis, colatisque deos alienos, et vos incurvetis coram eis.

Take heed to yourselves. By often inculcating the same thing, viz., that they should diligently take heed, he indirectly arraigns man's proneness to superstition; and this too is again expressed in the words, "that your heart be not deceived;" for by them he signifies, that unless they take diligent heed to themselves, nothing will be more easy than for them to fall into the snares of Satan. Wherefore the impudence of the Papists is the less excusable, who intoxicate their own and others' minds with security, when God constantly exhorts them to solicitude. Let us learn, then, that since many impostures and deceits besiege us on every side, we shall in the vanity of our nature be liable immediately to fall into them, unless we carefully guard ourselves. By the expression "turn aside," he implies what has been before said, that whosoever declines to corrupted worship, impiously falls away from the true God. Unbelievers but little think so, for with them it is a light transgression to exceed in this respect; and they would wilfully blind the eyes of God with their inventions (commentis), nay, there is nothing too silly for them to desire to be approved of, and sanctioned by God. But if it be objected that obedience is better than sacrifice, they shield themselves under the cover of their good intention, as if God were not at liberty to repudiate what they foolishly obtrude upon Him. At any rate, they so pertinaciously indulge themselves in their inconsiderate zeal, that they will hardly acknowledge the slightest fault in it. But, on the other side, God declares that all are apostates who do not confine themselves to the simplicity of the Law. A threat is again added, that God will avenge the violation of His worship, and will curse their land, until He shall destroy them by dearth and famine; and, finally, He pronounces that they shall perish off that land which God had promised them to the end that He might be there purely worshipped.

Take heed to yourselves, that your heart be not (f) deceived, and ye turn aside, and serve other gods, and worship them;
(f) By devising foolish devotions according to your own fantasies.

Take heed to yourselves, that your heart be not deceived,.... By observing the influence of the heavens upon the fruitfulness of the earth, and so be drawn to the worship of the host of them, the sun, moon, and stars; or by the examples of nations round about them; and by the plausible arguments they may make use of, taken from the traditions of ancestors, from antiquity, and the consent of nations, and the great numbers of worshippers, and the like:
and ye turn aside; from the true God, and the worship of him; or from the law, as Jarchi, which directs to the worship of one God, and forbids idolatry, or the worshipping of images:
and serve other gods, and worship them; other gods than the one only living and true God; gods that made not the heavens and the earth, and which cannot give rain, nor any blessing and mercy of life, nor help and deliver their worshippers when in distress.