This episode reiterates and details the principal point of the last episode: don't try to justify yourself and respond to the indictments of unbelievers. Nehemiah provides the model. He refuses to chase the false narrative of Sanballat, that he is a rebel, and instead affirms that "the God of heaven will give us success." When God gives us a vision what He wants to do through us, we shouldn't waste our time justifying why God is using us. "To the pure all things are pure, but to those who are defiled and unbelieving, nothing is pure; but even their minds and consciences are defiled." (Titus 1:15) In application, Christians shouldn't expect unbelievers, and even nominal/carnal Christians, to accurately see God's hand working through us. A defiled conscience and mind naturally projects its own condition, and consequently calls good evil. (Isaiah 5:20) So why waste your time explaining yourself?