Luke 6:35
But love your enemies, and show them kindness, and lend to them, never despairing. Then your reward shall be great, and you shall be Sons of the Most High, for he is kind to the thankless and the bad.
Luke 11:41
Only give away what is in them in charity, and at once you have the whole clean.
Luke 14:12-14
Then Jesus went on to say to the man who had invited him: "When you give a breakfast or a dinner, do not ask your friends, or your brothers, or your relations, or rich neighbors, for fear that they should invite you in return, and so you should be repaid.
2 Corinthians 9:6-11
Remember the saying--'Scanty sowing, scanty harvest; plentiful sowing, plentiful harvest.'
Hebrews 13:2
Do not neglect to show hospitality; for, through being hospitable, men have all unawares entertained angels.
James 1:27
That religious observance which is pure and spotless in the eyes of God our Father is this--to visit orphans and widows in their trouble, and to keep oneself uncontaminated by the world.