Watch

The good person out of his good treasure brings forth good, and the evil person out of his evil treasure brings forth evil. Matthew 12:35

Be alert. The world and our busy lives can make us targets for temptations. We need to prepare and care for our hearts so that we are prepared to fight temptations of all kinds.

“Be sure to lay in provision in store against the approaching of any temptation. This also belongs to our watchfulness over our hearts. You will say, “What provision is intended, and where is it to be laid up?” Our hearts, as our Savior speaks, are our treasury. There we lay up whatsoever we have, good or bad; and thence do we draw it for our use (Matt. 12:35). It is the heart, then, wherein provision is to be laid up against temptation. When an enemy draws nigh to a fort or castle to besiege and take it, oftentimes, if he find it well manned and furnished with provision for a siege, and so able to hold out, he withdraws and assaults it not. If Satan, the prince of this world, come and find our hearts fortified against his batteries, and provided to hold out, he not only departs, but, as James says, he flees: “He will flee from us” (4:7).” Overcoming Sin and Temptation - John Owen