ISB ~ 1 Peter 1 v12

those who preached:The apostles and prophets of the Church spoke by the same Spirit that had once inspired the Prophets of Israel (1:10-11). The result is a divinely established unity between OT and NT revelation (CCC 128-29).

angels long to look:The salvation of men, worked out through the suffering and glorification of Christ, was once a mystery hidden in God (Eph 3:9). It is now revealed to the Church through the Spirit and to the angels through the ministry of the Church (Eph 3:10).