If they sin: The second clause of this verse, as it is here translated, renders this supposition entirely nugatory; for if there be no man that sinneth not, it is useless to say, if they sin, but this objection is removed by rendering the original, "If they shall sin against thee (for there is no man that, lo yechetai:, may not sin") i.e., there is no man impeccable or infallible; none that is not liable to transgress.
there is no man: 2 Chronicles 6:36; Job 14:4, Job 15:14-16; Psalms 19:12, Psalms 130:3, Psalms 143:2; Proverbs 20:9; Ecclesiastes 7:20; Isaiah 53:6, Isaiah 64:6; Romans 3:19; Galatians 3:22; James 3:2; 1 John 1:8-10