'Distinction' in the Bible

He made no distinction between us and them, cleansing their hearts by faith.

—that is, God’s righteousness through faith in Jesus Christ, to all who believe, since there is no distinction.

for there is no distinction between Jew and Greek, since the same Lord of all is rich to all who call on Him.

Even inanimate things that produce sounds—whether flute or harp—if they don’t make a distinction in the notes, how will what is played on the flute or harp be recognized?