A pledge. Dictionary of Words from the King James Bible. Public Domain. Copy freely.
Now he which stablisheth us with you in Christ, and hath anointed us, is God; who hath also sealed us, and given the EARNEST of the Spirit in our hearts. ( 2 Corinthians 1:1 Genesis 1:21-22 )
Bibliography Information"Entry for 'Earnest'". Dictionary of Words from the King James Bible. . New York, N.Y., 1999.