Genesis 23:15
"Hear me, my lord. The land is worth 400 pieces of silver, but what is that between me and you? So bury your dead."
Ezekiel 45:12
The shekel will be twenty gerahs. Sixty shekels will be a mina for you.
Exodus 30:13
Everyone who crosses over to those who are numbered is to pay this: a half shekel according to the shekel of the sanctuary (a shekel weighs twenty gerahs). The half shekel is to be an offering to the Lord.
Exodus 30:15
The rich are not to increase it, and the poor are not to pay less than the half shekel when giving the offering of the Lord, to make atonement for your lives.