Can anyone keep the law of God perfectly?

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Across
  1. 2. Any of various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar, or petroleum and used for waterproofing, roofing, caulking, and paving
  2. 3. No person; not anyone
  3. 4. Tightly stretched; taut, stiff, tight
  4. 6. An atmospheric disturbance manifested in strong winds accompanied by rain, snow, or other precipitation and often by thunder and lightning
  5. 8. Since the _______, no human has been able to keep the law of God perfectly
Down
  1. 1. People who are neither a friend nor an acquaintance OR foreigners, newcomers, or outsiders
  2. 5. The earth OR the universe OR the earth with its inhabitants
  3. 7. Used as a courtesy title before the surname or full name of a man