'Engage' in the Bible

The Amorites who lived in the hill country came out to engage you in battle. They pursued you like bees do and crushed you from Seir to Hormah.

And Jehovah said to me, Distress not the Moabites, neither engage with them in battle; for I will not give thee of their land a possession; for unto the children of Lot have I given Ar as a possession.

“The Lord also said, ‘Get up, move out, and cross the Arnon Valley. See, I have handed Sihon the Amorite, king of Heshbon, and his land over to you. Begin to take possession of it; engage him in battle.

When you are about to engage in battle, the priest is to come forward and address the army.

He is to say to them: ‘Listen, Israel: Today you are about to engage in battle with your enemies. Do not be cowardly. Do not be afraid, alarmed, or terrified because of them.