English Standard Version (ESV)
We often have such certainty about the road ahead. Even if we wouldn't say it, we act like we know exactly how the days or the weeks will unfold. We are so accustomed to the way that things are that we assume that's the way they will always be.
Often, God has different intentions. What this means is that we are called to hold lightly onto our plans, trusting our futures to God. While it's necessary to plan for the future, we aren't in control, so we have to leave room for God to call us in new directions. We're to be flexible, and we are to be humble. God has much in store for the future, but so little is revealed to us. If the future doesn't turn out like we imagine it might or it should, we aren't to be disappointed, but rather to trust that God is using that to proclaim his name and build his kingdom. Our plans shouldn't be so buttoned down as to eliminate any room for the Holy Spirit. We are to remain humble and dependent on God, trusting him for vision and for whatever may come.