(9) According to our best MSS. this verse will run thus: Where (or, wherewith) your fathers tempted by trial, and saw My works forty years. The meaning of the Hebrew (with which the LXX. very nearly agrees) is: "Where your fathers tempted Me, proved Me; also saw My work." The change of reading is more interesting than important, as the sense is not materially different. Both here and in the original passage it seems probable that the "work," or "works," should be understood of the divine judgments which the disobedient people "saw" and bore during forty years. In the Psalm (and apparently in Hebrews 3:17 of this chapter) the mention of the forty years connects itself with the words which follow; but here with the provocations of the people and their punishment. It is held by many that in this period of forty years is contained a reference to the time that intervened between our Saviour's earthly ministry and the destruction of Jerusalem; and a Jewish tradition is quoted which assigns to "the days of Messiah" a duration of forty years.

3:7-13 Days of temptation are often days of provocation. But to provoke God, when he is letting us see that we entirely depend and live upon him, is a provocation indeed. The hardening of the heart is the spring of all other sins. The sins of others, especially of our relations, should be warnings to us. All sin, especially sin committed by God's professing, privileged people, not only provokes God, but it grieves him. God is loth to destroy any in, or for their sin; he waits long to be gracious to them. But sin, long persisted in, will make God's wrath discover itself in destroying the impenitent; there is no resting under the wrath of God. Take heed: all who would get safe to heaven must look about them; if once we allow ourselves to distrust God, we may soon desert him. Let those that think they stand, take heed lest they fall. Since to-morrow is not ours, we must make the best improvement of this day. And there are none, even the strongest of the flock, who do not need help of other Christians. Neither are there any so low and despised, but the care of their standing in the faith, and of their safety, belongs to all. Sin has so many ways and colours, that we need more eyes than ours own. Sin appears fair, but is vile; it appears pleasant, but is destructive; it promises much, but performs nothing. The deceitfulness of sin hardens the soul; one sin allowed makes way for another; and every act of sin confirms the habit. Let every one beware of sin.When your fathers tempted me,.... This the apostle cites and repeats, to expose the glorying of the Jews in their ancestors; to dissuade them from following their sinful practices; to deter them from the same by observing both their sin and punishment; and to heighten their regards to the voice and Gospel of Christ:

proved me; this is either an explication of the former phrase; or it may design the experience this people had of the power and goodness of God, notwithstanding their tempting and provoking the Lord by a distrust of them; which is an aggravation of their sin and ingratitude, and shows the forbearance of God, and that wicked men may partake of outward favours:

and saw my works forty years; that is, God's works of providence, in furnishing them with the necessaries of life, in guiding, protecting, and supporting them for the space of forty years, in the wilderness; and his miracles, and the punishment of their enemies; yet they saw and perceived not, but all this time sinned against the Lord, see Deuteronomy 29:2 the space of time, forty years, is in the psalm placed to the beginning of the next verse, and is joined with God's grief and indignation at the people, as it is also by the apostle, in Hebrews 3:17 but the people's sin, and God's grief at it, being of equal duration, it matters not to which it is placed, and therefore to both; perhaps, one reason of its being repeated, and so much notice taken of it is, because there was just this number of years from Christ's sufferings, to the destruction of Jerusalem; which the apostle might have in view.