"Brother B, you should move carefully and keep self under; be patient, meek, and lowly. A meek and quiet spirit is in the sight of God of great price. You should cherish that which God esteems of worth. A work must be accomplished for you both before you can meet the measurement of God. Work while the day lasts, for the night cometh in which no man can work. Stand in the clear light yourselves, then can you let your light so shine that others by seeing your good works will be led to glorify your heavenly Father. 1T 694.1"
"But let it be the hidden man of the heart, in that which is not corruptible, even the ornament of a meek and quiet spirit, which is in the sight of God of great price."
The EGW passage directly quotes and applies the principle from 1 Peter 3:4.
"I must work the works of him that sent me, while it is day: the night cometh, when no man can work."
The phrase "the night cometh in which no man can work" is a direct quote from John 9:4.
"Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven."
The phrase "let your light so shine that others by seeing your good works will be led to glorify your heavenly Father" is a clear allusion to Matthew 5:16.