This adjective carries two main semantic streams: guileless honesty (without deceit) and unadulterated purity (unmixed, genuine). Peter employs it in 1 Peter 2:2 urging new believers to crave "pure spiritual milk." Classical usage applied it to treaties made "without fraud," unadulterated wine or gold, and genuine produce. The metaphor of newborn babies desiring pure milk suggests both the unmixed quality of God's word and perhaps its guileless truthfulness. Spanish captures the "without deceit" nuance with "sin-engaño" while English and German emphasize "pure" or "unadulterated."