“For as the rain and the snow come down from heaven
    and do not return there but water the earth,
making it bring forth and sprout,
    giving seed to the sower and bread to the eater,
so shall my word be that goes out from my mouth;
    it shall not return to me empty,
but it shall accomplish that which I purpose,
    and shall succeed in the thing for which I sent it” (Isaiah 55:10–11, ESV).

“And let us not grow weary of doing good, for in due season we will reap, if we do not give up. So then, as we have opportunity, let us do good to everyone, and especially to those who are of the household of faith” (Galatians 6:9–10, ESV).

“But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light. Once you were not a people, but now you are God’s people; once you had not received mercy, but now you have received mercy” (1 Peter 2:9–10, ESV).