2 Corinthians 8:12

For if the eagerness is there, [then] whatever a person has [to give] is acceptable, and not what he does not have.

Mark 12:41-44

Then Jesus sat down over near the [Temple] treasury and watched how the crowd was throwing money into the treasury [Note: This "treasury" was a large open-mouthed container used for receiving offerings for meeting expenses of Temple upkeep]. Many rich people were throwing in lots of money.

2 Corinthians 9:6-7

But [remember] this: The person who plants only a few seeds will harvest a meager crop. And the one who plants many seeds [Note: The Greek says, "plants with blessings"] will harvest a bumper crop.

Treasury of Scripture Knowledge

Summary

Every man shall give as he is able, according to the blessing of the LORD thy God which he hath given thee.

Bible References

As he is able

Mark 12:41
Then Jesus sat down over near the [Temple] treasury and watched how the crowd was throwing money into the treasury [Note: This "treasury" was a large open-mouthed container used for receiving offerings for meeting expenses of Temple upkeep]. Many rich people were throwing in lots of money.
2 Corinthians 8:12
For if the eagerness is there, [then] whatever a person has [to give] is acceptable, and not what he does not have.
2 Corinthians 9:6
But [remember] this: The person who plants only a few seeds will harvest a meager crop. And the one who plants many seeds [Note: The Greek says, "plants with blessings"] will harvest a bumper crop.