[20:28] 1 sn The Greek word for ransom (λύτρον, lutron) is found here and in Mark 10:45 and refers to the payment of a price in order to purchase the freedom of a slave. The idea of Jesus as the “ransom” is that he paid the price with his own life by standing in our place as a substitute, enduring the judgment that we deserved for sin.
[2:6] 2 sn Revealing God’s purpose at his appointed time is a difficult expression without clear connection to the preceding, literally “a testimony at the proper time.” This may allude to testimony about Christ’s atoning work given by Paul and others (as v. 7 mentions). But it seems more likely to identify Christ’s death itself as a testimony to God’s gracious character (as vv. 3-4 describe). This testimony was planned from all eternity, but now has come to light at the time God intended, in the work of Christ. See 2 Tim 1:9-10; Titus 2:11-14; 3:4-7 for similar ideas.