"From eternity Christ has been man's Redeemer. Ever since the Fall there has come to those uniting with Him in His great work the word: “Be not weary in well-doing.” 2 Thessalonians 3:13 . Be ye steadfast, unmovable, always abounding in the work of the Lord.” 1 Corinthians 15:58 . 9T 220.2"
"But ye, brethren, be not weary in well doing."
Ellen White directly references 2 Thessalonians 3:13 in this passage.
"Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord."
Ellen White directly references 1 Corinthians 15:58 in this passage.
"The life of a true Christian is one continuous round of service. “We are laborers together with God.” Every day brings to the one in God's service duties proportionate to his powers. His usefulness increases as, under the guidance of a supreme Power, he performs these duties. The fulfillment of one duty makes us better prepared to take up another. Those who have a true sense of what is to be done will place themselves in the direct light of the word of God, in union with His other working forces. Every day, clothed with the whole armor, he will go forth into the battle. With prayer and watchfulness and perseverance he will labor, determined that the close of his lifework shall not find him unprepared, not having done all that he could for the salvation of perishing souls. 9T 220.4"
"For we are labourers together with God: ye are God’s husbandry, ye are God’s building."
EGW directly quotes 1 Corinthians 3:9.
"Put on the whole armour of God, that ye may be able to stand against the wiles of the devil."
EGW alludes to the concept of putting on the whole armor of God from Ephesians 6:11, and uses similar language about going forth into battle.