So “heart,” לֵב (lēb) in the Old Testament and καρδία (kardia) in the New Testament, statistically and ethically are the most prominent terms for man’s mission-control center. 160 Although לֵב (lēb) in the Old Testament is the multi-functional, work-horse term,161 and although καρδία (kardia) is still used in the New Testament to emphasize man’s thinking and planning functions, other Greek terms are also employed more restrictively to specify many of these particularized functions.
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