'Truly' in the Bible

Joshua continued, "This is how you will know the living God is among you and that he will truly drive out before you the Canaanites, Hittites, Hivites, Perizzites, Girgashites, Amorites, and Jebusites.

He answered, "Truly I am the commander of the Lord's army. Now I have arrived!" Joshua bowed down with his face to the ground and asked, "What does my master want to say to his servant?"