'Redeem' in the Bible

I thought to disclose it to you, saying, 'Buy it before those who sit here, and before the elders of my people.' If you will redeem it, redeem it; but if you will not redeem it, then tell me, that I may know. For there is no one to redeem it besides you; and I am after you." He said, "I will redeem it."

The near kinsman said, "I can't redeem it for myself, lest I mar my own inheritance. Take my right of redemption for yourself; for I can't redeem it."