Luke 14:28-34

²⁸If you planned to build a tower, wouldn't you first work out how much it would cost, and see if you had enough money to complete it?

²⁹Otherwise, if after laying the foundation you weren't able to finish it, everyone who saw it would laugh at you, saying,

³⁰‘Look at him: he started building but he couldn't finish it.’

³¹What king goes to war with another king without first sitting down with his advisors to work out whether he and his ten thousand can defeat the one marching against him with twenty thousand?

³²If he can't, he'll send representatives to ask for peace while the other king is still a long way off.

³³In the same way every one of you who doesn't give up everything can't be my disciple.

³⁴Salt is good, but if it loses its taste, how can you make it salty again?