John Wesley on Revelation 3:15

I know thy works - Thy disposition and behaviour, though thou knowest it not thyself. That thou art neither cold - An utter stranger to the things of God, having no care or thought about them. Nor hot - As boiling water: so ought we to be penetrated and heated by the fire of love. O that thou wert - This wish of our Lord plainly implies that he does not work on us irresistibly, as the fire does on the water which it heats. Cold or hot - Even if thou wert cold, without any thought or profession of religion, there would be more hope of thy recovery.