New Defender's Study Bible Notes
6:27 taking thought. The phrase “take thought” (Matthew 6:25,27,28,31,34) connotes “take anxious thought”—that is, to worry or be anxious. A believer should not be slothful or imprudent, and certainly not greedy or miserly, but should honor the Lord in all aspects of life, having faith that God will supply his needs (Matthew 6:33; Philippians 4:19).
6:33 kingdom of God. This is the first use of the phrase “the kingdom of God,” which occurs five times in Matthew and frequently in the other gospels. The equivalent term “kingdom of heaven” is used only in Matthew (see note on Matthew 3:2).