"exercise. To have strong faith, we must be placed in circumstances where our faith will be exercised. The apostle Paul, just before his martyrdom, exhorted Timothy: “Be thou partaker of the afflictions of the gospel according to the power of God.” It is through much tribulation that we are to enter the kingdom of God. Our Saviour was tried in every possible way, and yet He triumphed in God continually. It is our privilege to be strong in the strength of God under all circumstances and to glory in the cross of Christ. 3T 67.1"
"Be not thou therefore ashamed of the testimony of our Lord, nor of me his prisoner: but be thou partaker of the afflictions of the gospel according to the power of God;"
EGW directly quotes 2 Timothy 1:8.
"Confirming the souls of the disciples, and exhorting them to continue in the faith, and that we must through much tribulation enter into the kingdom of God."
EGW directly quotes Acts 14:22.
"I can do all things through Christ which strengtheneth me."
The passage in EGW discusses being strong in God's strength, which aligns with the theme of Philippians 4:13, where Paul states he can do all things through Christ who strengthens him. However, the connection is not a direct quote or explicit allusion, but rather a thematic similarity.