Hebrews 5:4

And no one takes on himself the honor [of head priest], but [he is appointed only] when he is called by God, as was the case with Aaron.

Luke 1:9

to perform his customary duties as a priest before God, he drew the responsibility [that day] of entering the Temple of the Lord to burn the incense offering. [Note: This was done on a golden Altar in the Temple by a priest twice a day].

Acts 13:2

As these men were ministering to the Lord [i.e., this probably means worshiping] and fasting, the Holy Spirit said [to one of them by way of inspiration]: "Set Barnabas and Saul apart for Me, [commissioning them] to do the work for which I have called them."

Romans 1:1

[This letter is from] Paul, a slave of Jesus Christ, [who was] called to be an apostle, [and] set apart for [preaching] the Gospel of God.

Galatians 1:15

But then it was the good pleasure of God, who set me apart [for this purpose] before I was born, to call me [to this ministry] through His unearned favor.

Revelation 8:3

Then another angel, who held a golden incense holder, came and stood at the Altar. He was given a quantity of incense to add to the prayers of all the saints [as an offering] on the golden Altar, which was in front of the throne.

Treasury of Scripture Knowledge

Summary

The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons for ever, to burn incense before the LORD, to minister unto him, and to bless in his name for ever.

To burn incense

General references

Bible References

Separated

Acts 13:2
As these men were ministering to the Lord [i.e., this probably means worshiping] and fasting, the Holy Spirit said [to one of them by way of inspiration]: "Set Barnabas and Saul apart for Me, [commissioning them] to do the work for which I have called them."
Romans 1:1
[This letter is from] Paul, a slave of Jesus Christ, [who was] called to be an apostle, [and] set apart for [preaching] the Gospel of God.
Galatians 1:15
But then it was the good pleasure of God, who set me apart [for this purpose] before I was born, to call me [to this ministry] through His unearned favor.
Hebrews 5:4
And no one takes on himself the honor [of head priest], but [he is appointed only] when he is called by God, as was the case with Aaron.

To burn incense

Luke 1:9
to perform his customary duties as a priest before God, he drew the responsibility [that day] of entering the Temple of the Lord to burn the incense offering. [Note: This was done on a golden Altar in the Temple by a priest twice a day].
Revelation 8:3
Then another angel, who held a golden incense holder, came and stood at the Altar. He was given a quantity of incense to add to the prayers of all the saints [as an offering] on the golden Altar, which was in front of the throne.

General references

Hebrews 5:4
And no one takes on himself the honor [of head priest], but [he is appointed only] when he is called by God, as was the case with Aaron.