"The Shaking I saw some, with strong faith and agonizing cries, pleading with God. Their countenances were pale and marked with deep anxiety, expressive of their internal struggle. Firmness and great earnestness was expressed in their countenances; large drops of perspiration fell from their foreheads. Now and then their faces would light up with the marks of God's approbation, and again the same solemn, earnest, anxious look would settle upon them. EW 269"
"And being in an agony he prayed more earnestly: and his sweat was as it were great drops of blood falling down to the ground."
Both passages describe intense prayer accompanied by physical manifestations of distress. Luke 22:44 describes Jesus's agony in prayer, with sweat falling like drops of blood. The EGW passage describes individuals pleading with God, with pale faces, anxiety, and perspiration. The shared elements of intense prayer and physical distress create a thematic parallel.
"Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered."
Both passages describe intense prayer and intercession. Romans 8:26 speaks of the Spirit interceding with groanings that cannot be uttered, while the EGW passage describes individuals pleading with God with agonizing cries. The theme of intense, heartfelt prayer connects the two passages.