He will not delay.

And the word of the Lord came to me: “Son of man, what is this proverb that you have about the land of Israel, saying, The days grow long, and every vision comes to nothing’? Tell them therefore, ‘Thus says the Lord God: I will put an end to this proverb, and they shall no more use it as a proverb in Israel.’ But say to them, The days are near, and the fulfillment of every vision. For there shall be no more any false vision or flattering divination within the house of Israel. For I am the Lord; I will speak the word that I will speak, and it will be performed. It will no longer be delayed, but in your days, O rebellious house, I will speak the word and perform it, declares the Lord God.”

And the word of the Lord came to me: “Son of man, behold, they of the house of Israel say, The vision that he sees is for many days from now, and he prophesies of times far off.’ Therefore say to them, Thus says the Lord God: None of my words will be delayed any longer, but the word that I speak will be performed, declares the Lord God.” (Ezekiel 12:21-28)