'Buy' in the Bible

And I thought {I would tell you} and say, '{Buy it in the presence of} those sitting and before the elders of my people,' if you want to redeem [it], redeem [it]. But if you do not want to redeem, tell me so that I may know, for there is no one except you to redeem [it], and I [am] after you." And he said, "I want to redeem [it]."