"Many are better prepared, have more spiritual discrimination and knowledge of God, and know more of His requirements, when they enter upon their course of study than when they are graduated. They become inspired with an ambition to become learned men and are encouraged to add to their studies until they become infatuated. They make their books their idol and are willing to sacrifice health and spirituality in order to obtain an education. They limit the time which they should devote to prayer and fail to improve the opportunities which they have to do good. They fail to put to use the knowledge which they have already obtained and do not advance in the science of winning souls. Missionary work becomes less and less desirable, while the passion to excel in book knowledge increases abnormally. In pursuing their studies they separate from the God of wisdom. Some congratulate them on their advancement and encourage them to take degree after degree.... CT 415.1"
"Now as touching things offered unto idols, we know that we all have knowledge. Knowledge puffeth up, but charity edifieth."
Both passages discuss the dangers of excessive knowledge and the importance of love/charity. EGW describes how the pursuit of knowledge can lead to neglecting spiritual growth and service, while 1 Corinthians 8:1 states that 'knowledge puffs up, but charity edifies.' The connection is clear and relevant.
"hear His voice as He says, “Go work today in My vineyard.” Matthew 21:28 . Now, just now, is the time to work.... CT 415.2"
"But what think ye? A certain man had two sons; and he came to the first, and said, Son, go work to day in my vineyard."
Ellen White directly references Matthew 21:28 in this passage.
"And said unto them; Go ye also into the vineyard, and whatsoever is right I will give you. And they went their way."
EGW directly quotes and alludes to the parable of the vineyard workers, making it an explicit allusion rather than just a thematic parallel. The reference to Matthew 21:28 is incorrect; it should be Matthew 20:4.
"“The Lord hath His way in the whirlwind and in the storm, and the clouds are the dust of His feet.” Nahum 1:3 . O that men might understand the patience and long-suffering of God! He is putting under restraint His own attributes. His omnipotent power is under the control of Omnipotence. O that men would understand that God refuses to be wearied out with the world's perversity and still holds out the hope of forgiveness even to the most undeserving! But His forbearance will not always continue. Who is prepared for the sudden change that will take place in God's dealing with sinful men? Who will be prepared to escape the punishment that will certainly fall upon transgressors? ... CT 415.3"
"The Lord is slow to anger, and great in power, and will not at all acquit the wicked: the Lord hath his way in the whirlwind and in the storm, and the clouds are the dust of his feet."
EGW directly quotes Nahum 1:3 and then elaborates on the themes presented in the verse. This is a clear and direct allusion.