"Then let us educate our hearts and lips to speak the praise of God for His matchless love. Let us educate our souls to be hopeful and to abide in the light shining from the cross of Calvary. Never should we forget that we are children of the heavenly King, sons and daughters of the Lord of hosts. It is our privilege to maintain a calm repose in God. MH 253.1"
"But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:"
Both passages highlight the identity of believers as children of God and call for expressing praise. 1 Peter 2:9 emphasizes showing forth God's praises, while EGW encourages educating our hearts and lips to speak praise.
"Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven."
Both passages encourage believers to be a positive influence. Matthew 5:16 calls for letting our light shine, while EGW encourages speaking praise and hope, which would reflect positively.
"“Let the peace of God rule in your hearts; ... and be ye thankful.” Colossians 3:15 . Forgetting our own difficulties and troubles, let us praise God for an opportunity to live for the glory of His name. Let the fresh blessings of each new day awaken praise in our hearts for these tokens of His loving care. When you open your eyes in the morning, thank God that He has kept you through the night. Thank Him for His peace in your heart. Morning, noon, and night, let gratitude as a sweet perfume ascend to heaven. MH 253.2"
"And let the peace of God rule in your hearts, to the which also ye are called in one body; and be ye thankful."
Ellen White directly references Colossians 3:15 in this passage.
"When someone asks how you are feeling, do not try to think of something mournful to tell in order to gain sympathy. Do not talk of your lack of faith and your sorrows and sufferings. The tempter delights to hear such words. When talking on gloomy subjects, you are glorifying him. We are not to dwell on the great power of Satan to overcome us. Often we give ourselves into his hands by talking of his power. Let us talk instead of the great power of God to bind up all our interests with His own. Tell of the matchless power of Christ, and speak of His glory. All heaven is interested in our salvation. The angels of God, thousands upon thousands, and ten thousand times ten thousand, are commissioned to minister to those who shall be heirs of salvation. They guard us against evil and press back the powers of darkness that are seeking our destruction. Have we not reason to be thankful every moment, thankful even when there are apparent difficulties in our pathway? MH 253.3"
"Submit yourselves therefore to God. Resist the devil, and he will flee from you."
Both passages address resisting the devil and focusing on God. James 4:7 is a direct command to resist the devil, while EGW provides practical advice on how to do so by focusing on God's power and glory instead of dwelling on negative thoughts and Satan's influence.
"And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death."
Both passages deal with overcoming evil through testimony and faith. Revelation speaks of overcoming Satan through the blood of the Lamb and testimony, while EGW speaks of overcoming the tempter by focusing on God's power and Christ's glory instead of dwelling on negative thoughts and Satan's power. The connection is thematic, focusing on the power of testimony and faith in overcoming evil.