DEUT789 No limitation has been set for the number (even if it reaches 100) of times the loans are to be granted. The person approached should not resent the inconvenience and be annoyed by the borrower pestering him so many times, coming to borrow or to repay, just as one never resents the constant visits to one's store of a regular customer from whom one profits. The lender should remember that each time he lands, he is fulfilling a positive commandment of the Torah. God's blessing will rest on him, since Scripture has given its assurance in a similar case of charity [this verse]: "Give--give to him (the repetition implying over and over again, even 100 times [Rashi], and your heart shall not be grieved; because for this thing, Hashem, your God, will bless you in all your work..."