Meaning: To motivate someone as stiring up coals produces flame.
Psalm 35:23
Stir up thyself, and awake to my judgment, even unto my cause, my God and my Lord.
2 Tim. 1:6
Wherefore I put thee in remembrance that thou stir up the gift of God, which is in thee by the putting on of my hands.
2 Peter 3:1
This second epistle, beloved, I now write unto you; in both which I stir up your pure minds by way of remembrance: