What does Judges 7:6 mean?
The Lord has given Gideon some very odd instructions. The Old Testament provided precedent for sending fearful soldiers back home (Deuteronomy 20:5–8; Judges 7:3). Yet the remaining forces were still too large for God's purposes. God wants all the credit for the coming victory over the Midianite horde. He's not merely defeating an enemy; He is also sending a message to His chosen people. A signal is being given to the Midianites, who at this point are aware of the Israeli forces mustering nearby (Judges 7:14). For all those reasons, He wants Gideon's force to be even smaller.To determine who should stay and who should go, God directed Gideon to take the men to a water source and divide them according to how they drank. Those who kneel—likely meaning they put their mouths in the water directly—should be put in one group. Those who lap the water out of their hands should be put in the other group.
Here, the results are reported. Only 300 men used their hands, while thirty times that many knelt to drink. Gideon, presumably, knows which group he'd prefer to lead into battle. However, God has created this imbalance for a good reason (Judges 7:7).