Wayne Jackson

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Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates? (2 Corinthians 13:5 KJV)

Links from Britannica.com for illustrations of the words “examine” and “prove”:

Periodic Table of the Elements

Qualitative Chemical Analysis

Assaying

Metallography

Mining