'Engaged' in the Bible

And afterwards they made ready for themselves and for the priests; because the priests, the sons of Aaron, were engaged in offering up the burnt-offerings and the fat until night; therefore the Levites prepared for themselves, and for the priests, the sons of Aaron.

And persons engaged in military service also asked him saying, And we, what should we do? And he said to them, Oppress no one, nor accuse falsely, and be satisfied with your pay.

And when, engaged in this, I was journeying to Damascus, with authority and power from the chief priests,