"He whose heart is fixed to serve God will find opportunity to witness for Him. Difficulties will be powerless to hinder him who is determined to seek first the kingdom of God and His righteousness. In the strength gained by prayer and a study of the word, he will seek virtue and forsake vice. Looking to Jesus, the Author and Finisher of the faith, who endured the contradiction of sinners against Himself, the believer will willingly brave contempt and derision. And help and grace sufficient for every circumstance are promised by Him whose word is truth. His everlasting arms encircle the soul that turns to Him for aid. In His care we may rest safely, saying, “What time I am afraid, I will trust in Thee.” Psalm 56:3 . To all who put their trust in Him, God will fulfill His promise. AA 467.1"
"What time I am afraid, I will trust in thee."
Ellen White directly references Psalms 56:3 in this passage.
"By His own example the Saviour has shown that His followers can be in the world and yet not of the world. He came not to partake of its delusive pleasures, to be swayed by its customs, and to follow its practices, but to do His Father's will, to seek and save the lost. With this object before him the Christian may stand uncontaminated in any surroundings. Whatever his station or circumstances, exalted or humble, he will manifest the power of true religion in the faithful performance of duty. AA 467.2"
"They are not of the world, even as I am not of the world."
The EGW passage directly echoes the sentiment and wording of John 17:16, emphasizing the separation from the world while still being present in it.
"Not in freedom from trial, but in the midst of it, is Christian character developed. Exposure to rebuffs and opposition leads the follower of Christ to greater watchfulness and more earnest prayer to the mighty Helper. Severe trial endured by the grace of God develops patience, vigilance, fortitude, and a deep and abiding trust in God. It is the triumph of the Christian faith that it enables its followers to suffer and be strong; to submit, and thus to conquer; to be killed all the day long, and yet to live; to bear the cross, and thus to win the crown of glory. AA 467.3"
"And not only so, but we glory in tribulations also: knowing that tribulation worketh patience; And patience, experience; and experience, hope: And hope maketh not ashamed; because the love of God is shed abroad in our hearts by the Holy Ghost which is given unto us."
Both passages discuss the development of Christian character through trials and tribulations, leading to patience, strength, and trust in God. The EGW passage expands on the themes presented in Romans 5:3-5.