Hebrews 8:3

8:3 For every high priest is appointed to offer both gifts and sacrifices. So this one too had to have something to offer.

Hebrews 9:8

9:8 The Holy Spirit is making clear that the way into the holy place had not yet appeared as long as the old tabernacle was standing.

Hebrews 10:12

10:12 But when this priest had offered one sacrifice for sins for all time, he sat down at the right hand of God,

Hebrews 11:17

11:17 By faith Abraham, when he was tested, offered up Isaac. He had received the promises, yet he was ready to offer up his only son.