3 Bible Verses about Forethoughts

but put ye on the Lord Jesus Christ, and make no provision for the lust of the flesh.

Sell your possessions and give alms; make for yourselves purses that will not get old, and treasure in the heavens which can not be stolen, where the thief does not draw nigh, nor the moth corrupt.

For which one of you, wishing to build a tower, does not first sitting down count the cost; if he has unto sufficiency?