"These questions were not without effect. Doubts which otherwise would never have arisen were suggested to John. Satan rejoiced to hear the words of these disciples, and to see how they bruised the soul of the Lord's messenger. Oh, how often those who think themselves the friends of a good man, and who are eager to show their fidelity to him, prove to be his most dangerous enemies! How often, instead of strengthening his faith, their words depress and dishearten! DA 215.1"
"Faithful are the wounds of a friend; but the kisses of an enemy are deceitful."
The EGW passage discusses how well-meaning friends can sometimes discourage a person, which aligns with the proverb about the wounds of a friend being faithful. The connection is thematic, focusing on the impact of words from those close to you.
"Like the Saviour's disciples, John the Baptist did not understand the nature of Christ's kingdom. He expected Jesus to take the throne of David; and as time passed, and the Saviour made no claim to kingly authority, John became perplexed and troubled. He had declared to the people that in order for the way to be prepared before the Lord, the prophecy of Isaiah must be fulfilled; the mountains and hills must be brought low, the crooked made straight, and the rough places plain. He had looked for the high places of human pride and power to be cast down. He had pointed to the Messiah as the One whose fan was in His hand, and who would thoroughly purge His floor, who would gather the wheat into His garner, and burn up the chaff with unquenchable fire. Like the prophet Elijah, in whose spirit and power he had come to Israel, he looked for the Lord to reveal Himself as a God that answereth by fire. DA 215.2"
"The voice of him that crieth in the wilderness, Prepare ye the way of the Lord, make straight in the desert a highway for our God. Every valley shall be exalted, and every mountain and hill shall be made low: and the crooked shall be made straight, and the rough places plain: And the glory of the Lord shall be revealed, and all flesh shall see it together: for the mouth of the Lord hath spoken it."
The EGW passage directly quotes and references Isaiah 40:3-5 in connection with John the Baptist's ministry. This is a clear and direct allusion.
"dared to face King Herod with the plain rebuke of sin. He had not counted his life dear unto himself, that he might fulfill his appointed work. And now from his dungeon he watched for the Lion of the tribe of Judah to cast down the pride of the oppressor, and to deliver the poor and him that cried. But Jesus seemed to content Himself with gathering disciples about Him, and healing and teaching the people. He was eating at the tables of the publicans, while every day the Roman yoke rested more heavily upon Israel, while King Herod and his vile paramour worked their will, and the cries of the poor and suffering went up to heaven. DA 215.3"
"For Herod had laid hold on John, and bound him, and put him in prison for Herodias’ sake, his brother Philip’s wife. For John said unto him, It is not lawful for thee to have her."
The EGW passage explicitly mentions Herod and John's imprisonment for rebuking him, directly referencing the events described in Matthew 14:3-4.
"The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised,"
The EGW passage describes Jesus' ministry of healing and teaching, and his concern for the poor and suffering, which aligns with the themes of Luke 4:18. While not a direct quote, the connection is clear.