Son of man, what is that proverb that ye have in the land of Israel, saying, The days {f} are prolonged, and every vision faileth?

(f) Because they did not immediately see the prophecies accomplished, they contemned them as though they would never be fulfilled.

Wesley's Notes

12:22 That proverb - That short saying commonly used. Days - Of wrath and vengeance, are to come a great while hence. Every vision - Threatening vision, which Jeremiah and Ezekiel would fright us with, comes to nothing.

Jamieson-Fausset-Brown Bible Commentary

22. proverb-The infidel scoff, that the threatened judgment was so long in coming, it would not come at all, had by frequent repetition come to be a "proverb" with them. This skeptical habit contemporary prophets testify to (Jer 17:15; 20:7; Zep 1:12). Ezekiel, at the Chebar, thus sympathizes with Jeremiah and strengthens his testimony at Jerusalem. The tendency to the same scoff showed itself in earlier times, but had not then developed into a settled "proverb" (Isa 5:19; Am 5:18). It shall again be the characteristic of the last times, when "faith" shall be regarded as an antiquated thing (Lu 18:8), seeing that it remains stationary, whereas worldly arts and sciences progress, and when the "continuance of all things from creation" will be the argument against the possibility of their being suddenly brought to a standstill by the coming of the Lord (Isa 66:5; 2Pe 3:3, 4). The very long-suffering of God, which ought to lead men to repentance, is made an argument against His word (Ec 8:11; Am 6:3).

days . prolonged . vision faileth-their twofold argument: (1) The predictions shall not come to pass till long after our time. (2) They shall fail and prove vain shadows. God answers both in Eze 12:23, 25.

Matthew Henry's Concise Commentary

12:21-28 From that forbearance of God, which should have led them to repent, the Jews hardened themselves in sin. It will not serve for an excuse in speaking evil, to plead that it is a common saying. There is but a step between us and an awful eternity; therefore it concerns us to get ready for a future state. No one will be able to put from himself the evil day, unless by seeking peace with the Lord.