“We are to stand firm as a rock to the principles of the word of God, remembering that God is with us to give us strength to meet each new experience. Let us ever maintain in our lives the principles of righteousness, that we may go forward from strength to strength in the name of the Lord. We are to hold as very sacred the faith that has been substantiated by the instruction and approval of the Spirit of God from our earliest experience until the present time. We are to cherish as very precious the work that the Lord has been carrying forward through His commandment-keeping people, and which, through the power of His grace, will grow stronger and more efficient as time advances. The enemy is seeking to becloud the discernment of God's people, and to weaken their efficiency; but if they will labor as the Spirit of God shall direct, He will open doors of opportunity before them for the work of building up the old waste places. Their experience will be one of constant growth, until the L…
"Finally, my brethren, be strong in the Lord, and in the power of his might."
Both passages encourage believers to be strong in the Lord. EGW's statement about God giving strength echoes the sentiment in Ephesians 6:10.
"Watch ye, stand fast in the faith, quit you like men, be strong."
The EGW passage encourages standing firm on principles and going from strength to strength, which aligns with the call to 'stand fast in the faith' and 'be strong' in 1 Corinthians 16:13. The thematic parallel is clear and meaningful.