from G1537 and G59; to buy up, i.e. ransom; figuratively, to rescue from loss (improve opportunity):--redeem.
to redeem
by payment of a price to recover from the power of another, to ransom, buy off
metaph. of Christ freeing the elect from the dominion of the Mosaic Law at the price of his vicarious death
to buy up, to buy up for one's self, for one's use
to make wise and sacred use of every opportunity for doing good, so that zeal and well doing are as it were the purchase money by which we make the time our own