6 Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.
7 And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.
careful (v.6) = anxious, having a distracting care — the habit of worry
nothing (v.6) = lit. “not even one thing”
prayer (v.6) — general term — prayer to God as worship and devotion
supplication (v.6) = petition for desired benefits
requests (v.6) — the things asked for
peace (v.7) — a sense of rest and contentment
peace of God (v.7) — more than “peace with God” — inward tranquility based and grounded on God’s presence
understanding (v.7) — all thinking power: perceiving, knowing, judging, determining
keep (v.7) — a military term — “to keep with a garrison”
heart (v.7) — the seat of thought and feeling
mind (v.7) — thoughts, mental actions issuing from t he mind
Stop perpetually worrying about even one thing, but in everything, by prayer whose essence is that of worship and devotion, and by supplication which is a cry for your personal needs, let your requests for the things asked for be made known in the presence of God, and the peace of God which surpasses all power of comprehension, shall mount guard over your hearts and minds in Christ Jesus. — Philippians in the Greek New Testament, by Kenneth S. Wuest, page 110.