Speak to all the people of the land, and to the {f} priests, saying, When ye fasted and mourned in the fifth and seventh month, even those seventy years, did ye at all fast to me, {g} even to me?

(f) For there were both of the people, and of the priests, those who doubted with regard to this controversy, besides those who as yet remained in Chaldea, and argue about it, as of one of the chief points of their religion.

(g) For they thought they had gained favour with God because of this fast, which they invented by themselves: and though fasting of itself is good, yet because they thought it a service toward God, and trusted in it, it is here reproved.

Wesley's Notes

7:5 Unto all the people - By their messengers. And seventh - For the murder of Gedaliah, slain by Ishmael. Even to me - You pleased yourselves in it, not me; you wept more for the inconveniences of the thing than the sinfulness of it.

Jamieson-Fausset-Brown Bible Commentary

5. Speak unto all-The question had been asked in the name of the people in general by Sherezer and Regemmelech. The self-imposed fast they were tired of, not having observed it in the spirit of true religion.

seventh month-This fast was in memory of the murder of Gedaliah and those with him at Mizpah, issuing in the dispersion of the Jews (2Ki 25:25, 26; Jer 41:1-3).

did ye . fast unto me?-No; it was to gratify yourselves in hypocritical will-worship. If it had been "unto Me," ye would have "separated yourselves" not only from food, but from your sins (Isa 58:3-7). They falsely made the fast an end intrinsically meritorious in itself, not a means towards God's glory in their sanctification. The true principle of piety, reference to God, was wanting: hence the emphatic repetition of "unto Me." Before settling questions as to the outward forms of piety (however proper, as in this case), the great question was as to piety itself; that being once settled, all their outward observances become sanctified, being "unto the Lord" (Ro 14:6).

Matthew Henry's Concise Commentary

7:1-7 If we truly desire to know the will of God in doubtful matters, we must not only consult his word and ministers, but seek his direction by fervent prayer. Those who would know God's mind should consult God's ministers; and, in doubtful cases, ask advice of those whose special business it is to search the Scriptures. The Jews seemed to question whether they ought to continue their fasts, seeing that the city and temple were likely to be finished. The first answer to their inquiry is a sharp reproof of hypocrisy. These fasts were not acceptable to God, unless observed in a better manner, and to better purpose. There was the form of duty, but no life, or soul, or power in it. Holy exercises are to be done to God, looking to his word as our rule, and his glory as our end, seeking to please him and obtain his favour; but self was the centre of all their actions. And it was not enough to weep on fast days; they should have searched the Scriptures of the prophets, that they might have seen what was the ground of God's controversy with their fathers. Whether people are in prosperity or adversity, they must be called upon to leave their sins, and to do their duty.