"Chapter 5—The Dedication This chapter is based on Luke 2:21-38 . About forty days after the birth of Christ, Joseph and Mary took Him to Jerusalem, to present Him to the Lord, and to offer sacrifice. This was according to the Jewish law, and as man's substitute Christ must conform to the law in every particular. He had already been subjected to the rite of circumcision, as a pledge of His obedience to the law. DA 50"
"And when eight days were accomplished for the circumcising of the child, his name was called JESUS, which was so named of the angel before he was conceived in the womb. And when the days of her purification according to the law of Moses were accomplished, they brought him to Jerusalem, to present him to the Lord; (As it is written in the law of the Lord, Every male that openeth the womb shall be called holy to the Lord;) And to offer a sacrifice according to that which is said in the law of the Lord, A pair of turtledoves, or two young pigeons. And, behold, there was a man in Jerusalem, whose name was Simeon; and the same man was just and devout, waiting for the consolation of Israel: and the Holy Ghost was upon him. And it was revealed unto him by the Holy Ghost, that he should not see death, before he had seen the Lord’s Christ. And he came by the Spirit into the temple: and when the parents brought in the child Jesus, to do for him after the custom of the law, Then took he him up in his arms, and blessed God, and said, Lord, now lettest thou thy servant depart in peace, according to thy word: For mine eyes have seen thy salvation, Which thou hast prepared before the face of all people; A light to lighten the Gentiles, and the glory of thy people Israel. And Joseph and his mother marvelled at those things which were spoken of him. And Simeon blessed them, and said unto Mary his mother, Behold, this child is set for the fall and rising again of many in Israel; and for a sign which shall be spoken against; (Yea, a sword shall pierce through thy own soul also,) that the thoughts of many hearts may be revealed. And there was one Anna, a prophetess, the daughter of Phanuel, of the tribe of Aser: she was of a great age, and had lived with an husband seven years from her virginity; And she was a widow of about fourscore and four years, which departed not from the temple, but served God with fastings and prayers night and day. And she coming in that instant gave thanks likewise unto the Lord, and spake of him to all them that looked for redemption in Jerusalem."
Ellen White directly references Luke 2:21-38 in this passage.
"And when the days of her purification according to the law of Moses were accomplished, they brought him to Jerusalem, to present him to the Lord;"
The EGW passage explicitly states it is based on Luke 2:21-38, and the provided verse is within that range.
"As an offering for the mother, the law required a lamb of the first year for a burnt offering, and a young pigeon or a turtledove for a sin offering. But the law provided that if the parents were too poor to bring a lamb, a pair of turtledoves or two young pigeons, one for a burnt offering, the other for a sin offering, might be accepted. DA 50.2"
"And when the days of her purifying are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year for a burnt offering, and a young pigeon, or a turtledove, for a sin offering, unto the door of the tabernacle of the congregation, unto the priest:"
EGW is directly quoting and explaining the requirements of the law as stated in Leviticus 12:6.
"And if she be not able to bring a lamb, then she shall bring two turtles, or two young pigeons; the one for the burnt offering, and the other for a sin offering: and the priest shall make an atonement for her, and she shall be clean."
EGW is directly quoting and explaining the exception to the law for the poor as stated in Leviticus 12:8.
"The offerings presented to the Lord were to be without blemish. These offerings represented Christ, and from this it is evident that Jesus Himself was free from physical deformity. He was the “lamb without blemish and without spot.” 1 Peter 1:19 . His physical structure was not marred by any defect; His body was strong and healthy. And throughout His lifetime He lived in conformity to nature's laws. Physically as well as spiritually, He was an example of what God designed all humanity to be through obedience to His laws. DA 50.3"
"But with the precious blood of Christ, as of a lamb without blemish and without spot:"
EGW directly quotes and expands upon 1 Peter 1:19, connecting the unblemished lamb to Christ's physical perfection.
"But whatsoever hath a blemish, that shall ye not offer: for it shall not be acceptable for you."
EGW is referencing the principle of unblemished offerings and connecting it to Christ, as described in Leviticus 22:20.