"could have the assurance of pardon they would not shrink from torture or death; but should they prove unworthy, and lose their lives because of their own defects of character, then God's holy name would be reproached. GC 619.1"
"For the name of God is blasphemed among the Gentiles through you, as it is written."
Both passages address the idea that the actions of believers can either honor or dishonor God's name. The EGW quote speaks of reproaching God's name through unworthiness, while Romans 2:24 states that God's name is blasphemed through the actions of the Jews. The connection is thematic, focusing on the impact of behavior on God's reputation.
On every hand they hear the plottings of treason and see the active working of rebellion; and there is aroused within them an intense desire, an earnest yearning of soul, that this great apostasy may be terminated and the wickedness of the wicked may come to an end. But while they plead with God to stay the work of rebellion, it is with a keen sense of self-reproach that they themselves have no more power to resist and urge back the mighty tide of evil. They feel that had they always employed all their ability in the service of Christ, going forward from strength to strength, Satan's forces would have less power to prevail against them. GC 619.2 They afflict their souls before God, pointing to their past repentance of their many sins, and pleading the Saviour's promise: “Let him take hold of My strength, that he may make peace with Me; and he shall make peace with Me.” Isaiah 27:5 . Their faith does not fail because their prayers are not immediately answered. Though suffering the keene…
"Or let him take hold of my strength, that he may make peace with me; and he shall make peace with me."
Ellen White directly references Isaiah 27:5 in this passage.