There is a surrender that leaves some battles to the Lord.  There are other battles that we fight with Him by our side and that we cannot win if we do not fight.  It is important to know the difference.  Our commitment to the struggle is a part of the victory.  He is committed to the struggle and we have to be as well.  Inactivity on some things leads to defeat.  Running ahead of our Lord is not good either.  Listen to your heart, but most of all listen to the Spirit.

“You will not need to fight in this battle. Position yourselves, stand still and see the salvation of the LORD, who is with you, O Judah and Jerusalem!’ Do not fear or be dismayed; tomorrow go out against them, for the LORD is with you.” 2 Chronicles 20:17 (NKJV)