"Worldly policy and the undeviating principles of righteousness do not blend into each other imperceptibly, like the colors of the rainbow. Between the two a broad, clear line is drawn by the eternal God. The likeness of Christ stands out as distinct from that of Satan as midday in contrast with midnight. And only those who live the life of Christ are His co-workers. If one sin is cherished in the soul, or one wrong practice retained in the life, the whole being is contaminated. The man becomes an instrument of unrighteousness. DA 313.1"
"Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?"
The EGW passage echoes the sentiment of 2 Corinthians 6:14 regarding the incompatibility of righteousness and unrighteousness, light and darkness.
"Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit."
Both passages discuss the idea that inner corruption leads to outward manifestations of evil. While not a direct principle, there's a clear thematic connection.
"All who have chosen God's service are to rest in His care. Christ pointed to the birds flying in the heavens, to the flowers of the field, and bade His hearers consider these objects of God's creation. “Are not ye of much more value than they?” He said. Matthew 6:26 , R. V. The measure of divine attention bestowed on any object is proportionate to its rank in the scale of being. The little brown sparrow is watched over by Providence. The flowers of the field, the grass that carpets the earth, share the notice and care of our heavenly Father. The great Master Artist has taken thought for the lilies, making them so beautiful that they outshine the glory of Solomon. How much more does He care for man, who is the image and glory of God. He longs to see His children reveal a character after His similitude. As the sunbeam imparts to the flowers their varied and delicate tints, so does God impart to the soul the beauty of His own character. DA 313.2"
"Behold the fowls of the air: for they sow not, neither do they reap, nor gather into barns; yet your heavenly Father feedeth them. Are ye not much better than they?"
Ellen White directly references Matthew 6:26 in this passage.
"All who choose Christ's kingdom of love and righteousness and peace, making its interest paramount to all other, are linked to the world above, and every blessing needed for this life is theirs. In the book of God's providence, the volume of life, we are each given a page. That page contains every particular of our history; even the hairs of the head are numbered. God's children are never absent from His mind. DA 313.3"
"But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you."
The EGW passage directly reflects the principle of prioritizing God's kingdom and righteousness, as stated in Matthew 6:33, with the promise of blessings following.
"But the very hairs of your head are all numbered."
The EGW passage directly references the idea of the hairs of the head being numbered, which is a clear allusion to Matthew 10:30. The surrounding context in EGW further amplifies the idea of God's detailed knowledge and care for His children.