'Dividing' in the Bible

For He Himself is our peace and our bond of unity. He who made both groups—[Jews and Gentiles]—into one body and broke down the barrier, the dividing wall [of spiritual antagonism between us],

Study and do your best to present yourself to God approved, a workman [tested by trial] who has no reason to be ashamed, accurately handling and skillfully teaching the word of truth.

For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart.