Numbers 19:6

The priest shall take cedar wood and hyssop and scarlet material and cast it into the midst of the burning heifer.

Leviticus 14:4

then the priest shall give orders to take two live clean birds and cedar wood and a scarlet string and hyssop for the one who is to be cleansed.

Leviticus 14:6

As for the live bird, he shall take it together with the cedar wood and the scarlet string and the hyssop, and shall dip them and the live bird in the blood of the bird that was slain over the running water.

Leviticus 14:49

To cleanse the house then, he shall take two birds and cedar wood and a scarlet string and hyssop,

Psalm 51:7

Purify me with hyssop, and I shall be clean;
Wash me, and I shall be whiter than snow.

Isaiah 1:18

“Come now, and let us reason together,”
Says the Lord,
Though your sins are as scarlet,
They will be as white as snow;
Though they are red like crimson,
They will be like wool.

Hebrews 9:19-23

For when every commandment had been spoken by Moses to all the people according to the Law, he took the blood of the calves and the goats, with water and scarlet wool and hyssop, and sprinkled both the book itself and all the people,

Treasury of Scripture Knowledge

Summary

And the priest shall take cedar wood, and hyssop, and scarlet, and cast it into the midst of the burning of the heifer.

Bible References

General references

Leviticus 14:4
then the priest shall give orders to take two live clean birds and cedar wood and a scarlet string and hyssop for the one who is to be cleansed.
Psalm 51:7
Purify me with hyssop, and I shall be clean;
Wash me, and I shall be whiter than snow.
Isaiah 1:18
“Come now, and let us reason together,”
Says the Lord,
Though your sins are as scarlet,
They will be as white as snow;
Though they are red like crimson,
They will be like wool.
Hebrews 9:19
For when every commandment had been spoken by Moses to all the people according to the Law, he took the blood of the calves and the goats, with water and scarlet wool and hyssop, and sprinkled both the book itself and all the people,