Nehemiah 5:8

We, after our ability, have redeemed our brethren Nehemiah and his predecessors had used their utmost interest and power with the kings of Persia, that their brethren might be redeemed from bondage, whereby they had been restored both to their liberty and to their own country. And it is probable they had, with their money, procured the freedom of such as were slaves to some of the Babylonians, who would not part with them without a price paid for them. Shall they be sold unto us? Do you expect that we should pay you a price for them, as we did to the Babylonians? Or must we use as much importunity to solicit you for their redemption as we used with their enemies? Then held they their peace They made no reply, because they could neither deny the fact nor justify it, an express law of God being against them.