Have you watched the weather forecast and they said “it is going to rain”. So you expect rain and then it changes and the sun comes out instead. That is one thing you can count on never happening with God’s plans. God has complete knowledge of all things. “The plans of the Lord stand firm forever “(Psalm 33:11) God will always be the same.
For the LORD Almighty has purposed, and who can thwart him?
His hand is stretched out, and who can turn it back
Isaiah 14:27