For who of you, wishing to build a tower, does not, first, sitting down, calculate the expense, whether he has enough for its completion? lest, perhaps, having laid a foundation, and not being able to finish it, all who behold begin to mock him, saying, 'This man began to build, and was not able to finish!'read more.
"Or what king, going on to engage another king in war, does not, sitting down, first take counsel, whether he is able, with ten thousand, to meet him who is coming against him with twenty thousand?

instead of your saying, "If the Lord will, we shall both live, and do this or that." But now ye are glorying in your boastings! all such glorying is evil.