The ONLY things we acquire for eternity

In Parshas Naso the Torah says of what a man gives to the Kohen, "it shall be his." Whose is it, if he just handed it away? Rashi gives two answers, and the Chofetz Chaim finds in the pasuk an anchor for how to spend a life. He tells of a man with three friends, summoned by the king with two hours to spare, who goes to each in turn asking for help. Which one stands by him is told in a mashal that stays with you.