Corresponding Greek / Hebrew Entries: While there is no direct Hebrew equivalent for καρδιογνώστης, the concept of God knowing the heart is present in several Hebrew terms and passages. Notable entries include:

- H3820 לֵב (leb): Often translated as "heart," this term is used in contexts where God examines or knows the heart, such as in 1 Samuel 16:7, "The LORD does not see as man sees; for man looks at the outward appearance, but the LORD looks at the heart."

- H3045 יָדַע (yada): Meaning "to know," this verb is used in passages like Jeremiah 17:10, "I, the LORD, search the heart, I test the mind, even to give every man according to his ways, according to the fruit of his doings."

These Hebrew concepts align with the New Testament portrayal of God as καρδιογνώστης, affirming the continuity of this divine attribute across both Testaments.

Usage: The term καρδιογνώστης is used in the New Testament to describe God as the one who knows the innermost thoughts and intentions of the human heart.

Context: The Greek term καρδιογνώστης appears in the New Testament to emphasize the divine attribute of omniscience, particularly in relation to the human heart. This term is used to describe God's unique ability to perceive and understand the true nature and intentions of individuals, beyond outward appearances or actions.

In Acts 1:24, the disciples pray, "Lord, You know everyone's heart. Show us which of these two You have chosen." Here, καρδιογνώστης underscores the belief that God alone possesses the perfect knowledge of human hearts, enabling Him to make judgments and decisions that are just and true.

Similarly, in Acts 15:8, during the Jerusalem Council, Peter states, "And God, who knows the heart, showed His approval by giving the Holy Spirit to them, just as He did to us." This passage highlights God's impartiality and His ability to discern genuine faith and righteousness, irrespective of external factors such as ethnicity or cultural background.

The concept of God as καρδιογνώστης is foundational to the biblical understanding of divine judgment and grace. It reassures believers that God is aware of their true intentions and struggles, offering comfort that His judgments are based on complete and perfect knowledge. This divine attribute also serves as a reminder of the importance of sincerity and integrity in one's relationship with God, as He is not deceived by mere outward appearances.