Luke 14:29-31

14:29 Otherwise, when he has laid a foundation and is not able to finish the tower, all who see it will begin to make fun of him. 14:30 They will say, ‘This man began to build and was not able to finish!’ 14:31 Or what king, going out to confront another king in battle, will not sit down first and determine whether he is able with ten thousand to oppose the one coming against him with twenty thousand?