Let not your hand be extended to receive means “don’t be greedy and try to get things” and but withdrawn when it is time to repay means “don’t be greedy and try to keep things.” Good News Translation retains the imagery of the hand, sticking it out palm upwards for someone to put something in it, but being “tightfisted,” clenching the hand into a fist, when the time comes to repay the favor—whether to the person who made you the gift or to anyone else is not specified. The Greek is not necessarily talking about repayment of a debt. Note New English Bible‘s helpful translation for this verse:

• Do not keep your hand open to receive
and close it when it is your turn to give.

Quoted with permission from Bullard, Roger A. and Hatton, Howard A. A Handbook on Sirach. (UBS Helps for Translators). New York: UBS, 2008. For this and other handbooks for translators see here.