2 Corinthians 5:6-7, 13-18
So we are always confident; even though we know that while we are at home in the body we are away from the Lord— for we walk by faith, not by sight. For if we are beside ourselves, it is for God; if we are in our right mind, it is for you. For the love of Christ urges us on, because we are convinced that one has died for all; therefore all have died. And he died for all, so that those who live might live no longer for themselves, but for him who died and was raised for them.
From now on, therefore, we regard no one from a human point of view; even though we once knew Christ from a human point of view, we know him no longer in that way. So if anyone is in Christ, there is a new creation: everything old has passed away; see, everything has become new! All this is from God, who reconciled us to himself through Christ, and has given us the ministry of reconciliation.
Jesus also said, “The kingdom of God is as if someone would scatter seed on the ground, and would sleep and rise night and day, and the seed would sprout and grow, he does not know how. The earth produces of itself, first the stalk, then the head, then the full grain in the head. But when the grain is ripe, at once he goes in with his sickle, because the harvest has come.”
He also said, “With what can we compare the kingdom of God, or what parable will we use for it? It is like a mustard seed, which, when sown upon the ground, is the smallest of all the seeds on earth; yet when it is sown it grows up and becomes the greatest of all shrubs, and puts forth large branches, so that the birds of the air can make nests in its shade.”