“But the mountain shall be thine; for it is a wood, and thou shalt cut it down: and the outgoings of it shall be thine: for thou shalt drive out the Canaanites, though they have iron chariots, and though they be strong.” (Joshua 17:18)

The tribe of Manasseh came to Joshua asking for more land because part of the land God gave to them was covered in trees and the other part was inhabited by Canaanites. They couldn’t get victory because of the trees and the Canaanites.

So, God answered their request by telling them to do two things which would give them all the land they would need. It is the same two things we are to do if we are going to have complete victory in our Christian life.