I really didn’t care for missing the mark as a definition of sin. It seemed to me to minimalize the seriousness of sin.

Yet, with further examination maybe it’s not such a bad definition. If. If the person is serious about marksmanship. If it is a lifestyle and not a game or hobby. The marksman is constantly striving to hit the mark. A miss is a disappointment and shame.

What would have happened if David missed the mark in his fight with Goliath?

Keep in mind the wages of sin is death. If we follow Christ and walk with him, he will teach us with practice to hit the mark every time. We can be perfect for a few seconds, then for a few minutes, and soon enough days turn into weeks of righteous living.

Job 17:9 KJV
The righteous also shall hold on his way, and he that hath clean hands shall be stronger and stronger.