Judges 1:27-2:5

The Israelites did not fully obtain the land because they did not chase away the Canaanites. It was only later that they realised what they had missed out and tried to make changes. How you spend your time will definitely affect your behaviour. (Israelites were spending time with the Canaanites.)

What God is concerned about is not the battle, but the spiritual battle that His people struggle with.

To delay is to disobey. 
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