"The angels of God are ever passing from earth to heaven, and from heaven to earth. The miracles of Christ for the afflicted and suffering were wrought by the power of God through the ministration of the angels. And it is through Christ, by the ministration of His heavenly messengers, that every blessing comes from God to us. In taking upon Himself humanity, our Saviour unites His interests with those of the fallen sons and daughters of Adam, while through His divinity He grasps the throne of God. And thus Christ is the medium of communication of men with God, and of God with men. DA 143.1"
"And he saith unto him, Verily, verily, I say unto you, Hereafter ye shall see heaven open, and the angels of God ascending and descending upon the Son of man."
The EGW passage expands on the imagery of angels ascending and descending, directly referencing John 1:51.
"For there is one God, and one mediator between God and men, the man Christ Jesus;"
Both passages directly address Christ as the mediator between God and humanity. The EGW passage expands on the concept of mediation, including the role of angels, but the core idea is the same.
"Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?"
Both passages discuss the role of angels as ministering spirits. The EGW passage expands on this theme, aligning with the concept presented in Hebrews 1:14.