"This parable illustrates the value of the heavenly treasure, and the effort that should be made to secure it. The finder of the treasure in the field was ready to part with all that he had, ready to put forth untiring labor, in order to secure the hidden riches. So the finder of heavenly treasure will count no labor too great and no sacrifice too dear, in order to gain the treasures of truth. COL 104.1"
"Again, the kingdom of heaven is like unto treasure hid in a field; the which when a man hath found, he hideth, and for joy thereof goeth and selleth all that he hath, and buyeth that field."
This passage explains the meaning of the parable of the hidden treasure, emphasizing the value of the heavenly treasure and the effort required to obtain it, which aligns with the message of Matthew 13:44.
"If thou seekest her as silver, and searchest for her as for hid treasures; Then shalt thou understand the fear of the Lord, and find the knowledge of God."
EGW directly uses the phrase 'hidden treasure' in a way that clearly alludes to the biblical concept of seeking wisdom and knowledge as one would seek hidden treasure. The brevity of the EGW quote makes it an allusion rather than a full thematic parallel.