Read Ephesians 1:7, 2:7, and 3:8. "magnitude' means 'great size or extent of something or great importance;. "extensive' means 'large in amount or scale'. 'underestimate' means 'estimate (something) to be smaller or less importance than it actually is'. "deplete' means 'never run out'. 'unsearchable' means 'unable to be clearly understood' 'unfathomable' means 'incapable of being full explored or understood'