Ezekiel 45:18

Thus said the Lord Jehovah: In the first month, in the first of the month, thou dost take a bullock, a son of the herd, a perfect one, and hast cleansed the sanctuary:

Leviticus 16:16

and he hath made atonement for the sanctuary because of the uncleanness of the sons of Israel, and because of their transgressions in all their sins; and so he doth for the tent of meeting which is tabernacling with them in the midst of their uncleannesses.

Exodus 12:2

This month is to you the chief of months -- it is the first to you of the months of the year;

Leviticus 16:33

and he hath made atonement for the holy sanctuary; and for the tent of meeting, even for the altar he doth make atonement; yea, for the priests, and for all the people of the assembly he maketh atonement.

Leviticus 22:20

nothing in which is blemish do ye bring near, for it is not for a pleasing thing for you.

Ezekiel 43:22

And on the second day thou dost bring near a kid of the goats, a perfect one, for a sin-offering, and they have cleansed the altar, as they cleansed it for the bullock.

Hebrews 9:14

how much more shall the blood of the Christ (who through the age-during Spirit did offer himself unblemished to God) purify your conscience from dead works to serve the living God?

Ezekiel 43:26

Seven days they purify the altar, and have cleansed it, and filled their hand.

Numbers 28:11-15

'And in the beginnings of your months ye bring near a burnt-offering to Jehovah: two bullocks, sons of the herd, and one ram, seven lambs, sons of a year, perfect ones;

Matthew 6:33

but seek ye first the reign of God and His righteousness, and all these shall be added to you.

Hebrews 7:26

For such a chief priest did become us -- kind, harmless, undefiled, separate from the sinners, and become higher than the heavens,

Hebrews 9:22-25

and with blood almost all things are purified according to the law, and apart from blood-shedding forgiveness doth not come.

Hebrews 10:3-4

but in those sacrifices is a remembrance of sins every year,

Hebrews 10:19-22

Having, therefore, brethren, boldness for the entrance into the holy places, in the blood of Jesus,

1 Peter 1:19

but with precious blood, as of a lamb unblemished and unspotted -- Christ's --

Treasury of Scripture Knowledge

Summary

Thus saith the Lord GOD; In the first month, in the first day of the month, thou shalt take a young bullock without blemish, and cleanse the sanctuary:

Bible References

In the first month

Exodus 12:2
This month is to you the chief of months -- it is the first to you of the months of the year;
Numbers 28:11
'And in the beginnings of your months ye bring near a burnt-offering to Jehovah: two bullocks, sons of the herd, and one ram, seven lambs, sons of a year, perfect ones;
Matthew 6:33
but seek ye first the reign of God and His righteousness, and all these shall be added to you.

Without blemish

Leviticus 22:20
nothing in which is blemish do ye bring near, for it is not for a pleasing thing for you.
Hebrews 7:26
For such a chief priest did become us -- kind, harmless, undefiled, separate from the sinners, and become higher than the heavens,
Hebrews 9:14
how much more shall the blood of the Christ (who through the age-during Spirit did offer himself unblemished to God) purify your conscience from dead works to serve the living God?
1 Peter 1:19
but with precious blood, as of a lamb unblemished and unspotted -- Christ's --

And cleanse

Ezekiel 43:22
And on the second day thou dost bring near a kid of the goats, a perfect one, for a sin-offering, and they have cleansed the altar, as they cleansed it for the bullock.
Leviticus 16:16
and he hath made atonement for the sanctuary because of the uncleanness of the sons of Israel, and because of their transgressions in all their sins; and so he doth for the tent of meeting which is tabernacling with them in the midst of their uncleannesses.
Hebrews 9:22
and with blood almost all things are purified according to the law, and apart from blood-shedding forgiveness doth not come.
Hebrews 10:3
but in those sacrifices is a remembrance of sins every year,