"On hearing this account, the brethren were silenced. Convinced that Peter's course was in direct fulfillment of the plan of God, and that their prejudices and exclusiveness were utterly contrary to the spirit of the gospel, they glorified God, saying, “Then hath God also to the Gentiles granted repentance unto life.” AA 142.1"
"When they heard these things, they held their peace, and glorified God, saying, Then hath God also to the Gentiles granted repentance unto life."
This is a direct quote from Acts 11:18.
"Thus, without controversy, prejudice was broken down, the exclusiveness established by the custom of ages was abandoned, and the way was opened for the gospel to be proclaimed to the Gentiles. AA 142.2"
"Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons:"
The EGW passage describes the breaking down of prejudice and the opening of the gospel to the Gentiles, which is a direct consequence of the principle stated in Acts 10:34 that God is no respecter of persons.