'Indeed' in the Bible

Indeed, for forty years the Israelites traveled through the desert until all the men old enough to fight when they left Egypt, the ones who had disobeyed the Lord, died off. For the Lord had sworn a solemn oath to them that he would not let them see the land he had sworn on oath to give them, a land rich in milk and honey.

He said, “No; rather I indeed come now as captain of the host of the Lord.” And Joshua fell on his face to the earth, and bowed down, and said to him, “What has my lord to say to his servant?”

And Achan answered Joshua, and said, Indeed I have sinned against the LORD God of Israel, and thus and thus have I done:

for if indeed you turn back and join these remaining nations {among you}, and you intermarry with them, {marrying their women and they yours},