Complex sentence: Although they have the power to commit sins, the Infallibles are immune to sin by their nature which is a miraculous gift from God and because of their supreme level of righteousness, consciousness and love for God, they care to act according to God's desires.
Split into simpler sentences: Although they have the power to commit sins, the Infallibles are immune to sin by their nature which is a miraculous gift from God. Because of his or her supreme level of righteousness, consciousness and love for God, the infallible cares to act according to God's desires.