From the Bible:
In the passage preceding the one that we read last week, Jesus said:
I am the true vine, and my Father is the husbandman.
Every branch in me that beareth not fruit he taketh away: and every branch that beareth fruit, he purgeth it, that it may bring forth more fruit.
Now ye are clean through the word which I have spoken unto you.
Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.
From the Bhagavad Gita, tenth Chapter:
Everyone in this world whose life is glorious, or prosperous, or powerful – know that his achievement is but a little spark from the great sun of My effulgence.