In his heart a man plans his course, but the LORD determines his steps. Proverbs 16:9
You can plan and plan and plan all you like, but in the end God’s going to allow things in your life that will probably alter your course. We don’t like that, do we? We like to be in control.
So, is this verse saying we should just “wing it” and not plan? Not at all. God can use those plans for his Glory. We just need to be willing to let go of those plans and trust God for the outcome.