Numbers 3:15
"Number the children of Levi after the house of their fathers, by their families: every male from a month old and upward shalt thou number them."
Cross References (ranked by relevance)
And those that were numbered of them were twenty and three thousand, all males from a month old and upward: for they were not numbered among the children of Israel, because there was no inheritance given them among the children of Israel.
But when Jesus saw it, he was much displeased, and said unto them, Suffer the little children to come unto me, and forbid them not: for of such is the kingdom of God.
And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
I love them that love me; and those that seek me early shall find me.
And all the firstborn males by the number of names, from a month old and upward, of those that were numbered of them, were twenty and two thousand two hundred and threescore and thirteen.
But the Levites after the tribe of their fathers were not numbered among them.
The LORD hath appeared of old unto me, saying, Yea, I have loved thee with an everlasting love: therefore with lovingkindness have I drawn thee.
Go and cry in the ears of Jerusalem, saying, Thus saith the LORD; I remember thee, the kindness of thy youth, the love of thine espousals, when thou wentest after me in the wilderness, in a land that was not sown.
Those that were numbered of them, according to the number of all the males, from a month old and upward, even those that were numbered of them were seven thousand and five hundred.
And those that were numbered of them, according to the number of all the males, from a month old and upward, were six thousand and two hundred.
In the number of all the males, from a month old and upward, were eight thousand and six hundred, keeping the charge of the sanctuary.