1 Samuel 17:37 (NIV)
Go and the Lord be with you.
If we're in Christ, we don't have to keep asking the Lord for His will because we are His will. If we ever step out of His grace, the Holy Spirit will stop us and we have to yield to Him. We see in Acts how the Holy Spirit prevented the Apostle Paul from going to Asia and instead sent him to Macedonia. So, if we are out of God's will the Holy Spirit will check us, if not we are in His will and should continue His good work.