What is Jesus' advice on offerings or tithings?

Answer 1

Mark 12

41] And Jesus sat over against the treasury, and beheld how the people cast money into the treasury: and many that were rich cast in much.
[42] And there came a certain poor widow, and she threw in two mites, which make a farthing.
[43] And he called unto him his disciples, and saith unto them, Verily I say unto you, That this poor widow hath cast more in, than all they which have cast into the treasury:
[44] For all they did cast in of their abundance; but she of her want did cast in all that she had, even all her living. Luke 21 [1] And he looked up, and saw the rich men casting their gifts into the treasury.
[2] And he saw also a certain poor widow casting in thither two mites.
[3] And he said, Of a truth I say unto you, that this poor widow hath cast in more than they all:
[4] For all these have of their abundance cast in unto the offerings of God: but she of her penury hath cast in all the living that she had.