"In nowise disconcerted by the words of Jesus, Mary said to those serving at table, “Whatsoever He saith unto you, do it.” Thus she did what she could to prepare the way for the work of Christ. DA 148.1"
"His mother saith unto the servants, Whatsoever he saith unto you, do it."
The EGW passage directly quotes and references John 2:5, making it an explicit allusion.
"Beside the doorway stood six large stone water jars, and Jesus bade the servants fill these with water. It was done. Then as the wine was wanted for immediate use, He said, “Draw out now, and bear unto the governor of the feast.” Instead of the water with which the vessels had been filled, there flowed forth wine. Neither the ruler of the feast nor the guests generally were aware that the supply of wine had failed. Upon tasting that which the servants brought, the ruler found it superior to any he had ever before drunk, and very different from that served at the beginning of the feast. Turning to the bridegroom, he said, “Every man at the beginning doth set forth good wine; and when men have well drunk, then that which is worse: but thou hast kept the good wine until now.” DA 148.2"
"Jesus saith unto them, Fill the waterpots with water. And they filled them up to the brim. And he saith unto them, Draw out now, and bear unto the governor of the feast. And they bare it. When the ruler of the feast had tasted the water that was made wine, and knew not whence it was: (but the servants which drew the water knew;) the governor of the feast called the bridegroom,"
The EGW passage closely follows the narrative of John 2:7-9, including direct quotes and descriptions of the events. This constitutes an explicit allusion.
"He gives grace for grace. There can be no failure of supply. If you abide in Him, the fact that you receive a rich gift today insures the reception of a richer gift tomorrow. The words of Jesus to Nathanael express the law of God's dealing with the children of faith. With every fresh revelation of His love, He declares to the receptive heart, “Believest thou? thou shalt see greater things than these.” John 1:50 . DA 148.3"
"Jesus answered and said unto him, Because I said unto thee, I saw thee under the fig tree, believest thou? thou shalt see greater things than these."
Ellen White directly references John 1:50 in this passage.