Matthew 24:45
"Who then, is the trustworthy and sensible slave, to whom his master has assigned the management of his household to provide timely meals for its members?
John 21:15-17
So, after they had eaten, Jesus said to Simon Peter, "Simon, son of John, do you really love me more than these [other disciples do]?" Peter answered Him, "Yes, Lord, you know that I love you." [Note: Since two different Greek words for "love" are used in this conversation, some scholars see a distinction in their meaning. See Butler, Vol. II, pp. 453-457 for a discussion of these views]. Jesus replied to him, "[Then] feed my lambs."
1 Peter 5:2
You should serve as shepherds of God's flock [i.e., the church], among whom you minister, providing careful oversight [of the people], not because you feel forced to, but because you want to, as this is in accordance with the way God wants it to be. Do not [serve as elders] simply out of a desire for the income you receive, but because your heart is in it.