Put Off – Presumption of the Future
Boast not thyself of to morrow; for thou knowest not what a day may bring forth.
Put On – Trust God
Whereas ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away. For that ye ought to say, If the Lord will, we shall live, and do this, or that. But now ye rejoice in your boastings: all such rejoicing is evil.