The Christian can protect his figurative heart ​ — the person he is on the inside — ​ by cultivating love for God’s righteousness and by adhering to Jehovah’s righteous standards.
كَانَ ٱلدِّرْعُ ٱلْحَرْفِيُّ يَحْمِي صَدْرَ ٱلْجُنْدِيِّ وَقَلْبَهُ وَأَعْضَاءً مُهِمَّةً أُخْرَى فِي جَسَدِهِ .‏