About being a blessing to others:

At the end of every three years, bring all the tithes of that year's produce and store it in your towns, � so that the Levites (who have no allotment or inheritance of their own) and the aliens, the fatherless and the widows who live in your towns may come and eat and be satisfied, and so that the Lord your God may bless you in all the work of your hands. � At the end of every seven years you must cancel debts. � You may require payment from a foreigner, but you must cancel any debt your brother owes you. � However, there should be no poor among you, for in the land the Lord your God is giving you to possess as your inheritance, he will richly bless you, � if only you fully obey the Lord your God and are careful to follow all these commands I am giving you today. � For the Lord your God will bless you as he has promised, and you will lend to many nations but will borrow from none. You will rule over many nations but none will rule over you. � If there is a poor man among your brothers in any of the towns of the land that the Lord your God is giving you, do not be hardhearted or tightfisted toward your poor brother. � Be careful not to harbor this wicked thought: "The seventh year, the year for canceling debts, is near," so that you do not show ill will toward your needy brother and give him nothing. He may then appeal to the Lord against you, and you will be found guilty of sin. � Give generously to him and do so without a grudging heart; then because of this the Lord your God will bless you in all your work and in everything you put your hand to. � There will always be poor people in the land. Therefore I command you to be openhanded toward your brothers and toward the poor and needy in your land. � 

Verse References In The Order Presented Above -- Deuteronomy 14:28 ; Deuteronomy 14:29 ; Deuteronomy 15:1 ; Deuteronomy 15:3 ; Deuteronomy 15:4 ; Deuteronomy 15:5 ; Deuteronomy 15:6 ; Deuteronomy 15:7 ; Deuteronomy 15:9 ; Deuteronomy 15:10 ; Deuteronomy 15:11 (NIV)