'Tends' in the Bible

[Consider this:] Who at any time serves as a soldier at his own expense? Who plants a vineyard and does not eat its fruit? Or who tends a flock and does not use the milk of the flock?

Paul, a bond-servant of God and an apostle (special messenger, personally chosen representative) of Jesus Christ, for the faith of God’s chosen ones and [to lead and encourage them to recognize and pursue] the knowledge of the truth which leads to godliness,