Hebrews 9:6

Now these things having been prepared in this way, the priests enter into the first tent {continually} [as they] accomplish their service,

Numbers 28:3

You will say to them, 'This [is] the offering made by fire that you will offer to Yahweh: two male lambs without defect {in their first year} as a continual burnt offering each day.

Exodus 27:21

In the tent of assembly outside the curtain that [is] before the testimony, Aaron and his sons will arrange it, from evening until morning, before Yahweh [as] a lasting statute throughout their generations from the {Israelites}.

Exodus 30:7-8

"And on it Aaron will turn fragrant incense into smoke; {each morning} when he tends the lamps, he will turn it into smoke.

2 Chronicles 26:16-19

But on account of his strength his heart grew proud unto destruction. And he acted unfaithfully against Yahweh his God and went into the temple of Yahweh to offer an incense offering on the altar.

Daniel 8:11

Even against the prince of the hosts it acted arrogantly and took away from him the regular burnt offering, and the place of his sanctuary was overthrown.

Luke 1:8-11

And it happened that [while] he was serving as priest before God in the order of his division,

Treasury of Scripture Knowledge

Summary

Now when these things were thus ordained, the priests went always into the first tabernacle, accomplishing the service of God.

Bible References

The priests

Exodus 27:21
In the tent of assembly outside the curtain that [is] before the testimony, Aaron and his sons will arrange it, from evening until morning, before Yahweh [as] a lasting statute throughout their generations from the {Israelites}.
Exodus 30:7
"And on it Aaron will turn fragrant incense into smoke; {each morning} when he tends the lamps, he will turn it into smoke.
Numbers 28:3
You will say to them, 'This [is] the offering made by fire that you will offer to Yahweh: two male lambs without defect {in their first year} as a continual burnt offering each day.
2 Chronicles 26:16
But on account of his strength his heart grew proud unto destruction. And he acted unfaithfully against Yahweh his God and went into the temple of Yahweh to offer an incense offering on the altar.
Daniel 8:11
Even against the prince of the hosts it acted arrogantly and took away from him the regular burnt offering, and the place of his sanctuary was overthrown.
Luke 1:8
And it happened that [while] he was serving as priest before God in the order of his division,