Exodus 30:8

When Aaron trims the lamps at twilight, he shall burn incense. There shall be perpetual incense before the Lord throughout your generations.

Exodus 12:6

You shall keep it until the fourteenth day of the same month, then the whole assembly of the congregation of Israel is to kill it at twilight.

Romans 8:34

who is the one who condemns? Christ Jesus is He who died, yes, rather who was raised, who is at the right hand of God, who also intercedes for us.

1 Thessalonians 5:17

pray without ceasing;

Hebrews 7:25

Therefore He is able also to save forever those who draw near to God through Him, since He always lives to make intercession for them.

Hebrews 9:24

For Christ did not enter a holy place made with hands, a mere copy of the true one, 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 the one who condemns? Christ Jesus is He who died, yes, rather who was raised, who is at the right hand of God, who also intercedes for us.
1 Thessalonians 5:17
pray without ceasing;
Hebrews 7:25
Therefore He is able also to save forever those who draw near to God through Him, since He always lives to make intercession for them.
Hebrews 9:24
For Christ did not enter a holy place made with hands, a mere copy of the true one, but into heaven itself, now to appear in the presence of God for us;