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" The verse emphasizes the importance of prayer and supplication, with thanksgiving, to present one's requests to God in every situation. The peace that surpasses all understanding will guard one's hearts and mental powers by means of Christ Jesus. The phrase "anxious" in the NKJV is replaced by "careful" in the KJV, which means to be watchful and restless. The verse also emphasizes the importance of presenting one's requests to God with thanksgiving."