Exodus 30:8

And when Aaron lighteth the lamps at evening, he shall burn incense upon it; a perpetual incense before the LORD, throughout your generations.

Exodus 12:6

And ye shall keep it until the fourteenth day of the same month: and the whole assembly of the congregation of Israel shall kill it in the evening.

Romans 8:34

Who is he that condemneth? It is Christ that died, or rather that is risen again, who is even at the right hand of God, who also maketh intercession for us.

1 Thessalonians 5:17

Pray without ceasing.

Hebrews 7:25

Wherefore he is able also to save them to the uttermost that come to God by him, seeing he ever liveth to make intercession for them.

Hebrews 9:24

For Christ hath not entered into the holy places made with hands, which are the figures of the true; but into heaven itself, now to appear in the presence of God for us:

Treasury of Scripture Knowledge

Summary

And when Aaron lighteth the lamps at even, he shall burn incense upon it, a perpetual incense before the LORD throughout your generations.

Bible References

A perpetual

Romans 8:34
Who is he that condemneth? It is Christ that died, or rather that is risen again, who is even at the right hand of God, who also maketh intercession for us.
1 Thessalonians 5:17
Pray without ceasing.
Hebrews 7:25
Wherefore he is able also to save them to the uttermost that come to God by him, seeing he ever liveth to make intercession for them.
Hebrews 9:24
For Christ hath not entered into the holy places made with hands, which are the figures of the true; but into heaven itself, now to appear in the presence of God for us: