Hebrews 2:2

2:2 For if the message spoken through angels proved to be so firm that every violation or disobedience received its just penalty,

Hebrews 4:11

4:11 Thus we must make every effort to enter that rest, so that no one may fall by following the same pattern of disobedience.

5:1 For every high priest is taken from among the people and appointed to represent them before God, to offer both gifts and sacrifices for sins.

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

10:11 And every priest stands day after day serving and offering the same sacrifices again and again – sacrifices that can never take away sins.

13:18 Pray for us, for we are sure that we have a clear conscience and desire to conduct ourselves rightly in every respect.

13:21 equip you with every good thing to do his will, working in us what is pleasing before him through Jesus Christ, to whom be glory forever. Amen.