The voluntary spilling of semen outside of intercourse between man and woman is a monstrous thing. Deliberately to withdraw from coitus in order that… - John Calvin

Let the first rule of right prayer then be, to have our heart and mind framed as becomes those who are entering into converse with God. This we shall accomplish in regard to the mind, if, laying aside carnal thoughts and cares which might interfere with the direct and pure contemplation of God, it not only be wholly intent on prayer, but also, as far as possible, be borne and raised above itself. ... When I say it must be raised above itself, I mean that it must not bring into the presence of God any of those things which our blind and stupid reason is wont to devise, nor keep itself confined within the little measure of its own vanity, but rise to a purity worthy of God.

To crave wealth and honor, to demand power, to pile up riches, to gather all those vanities which seem to make for pomp and empty display, that is our furious passion and our unbounded desire. On the other hand, we fear and abhor poverty, obscurity, and humility, and we seek to avoid them by all possible means.

If he has deserved no kindness, but just the opposite, because he has maddened you with his injuries and insults, even this is no reason why you should not surround him with your affection and show him all sorts of favors.