Isaiah 31:2a Yet he too is wise and can bring disaster;
he does not take back his words.
These words bring confidence and fear at the same time. I've often said things that I wish I could take back. Sometimes I have had to "eat" my words and take them back. God never takes back his words. What he speaks will come to pass. His promises are true. The promises of destruction and the promises of blessing will happen. You can always count on God's words.
Joshua 21:45 Not one of all the LORD's good promises to the house of Israel failed; every one was fulfilled.