Is Jehovah of the Old Testament a polar opposite of Jesus in the New Testament? The antithesis can be framed by setting forth that God the Father is constantly angry, quick-tempered, and ready to zealously carry out judgment toward sinners in the Old Testament whereas God the Son is consistently loving, patient, and merciful toward sinners in the New Testament. In order to briefly consider this apparent contrast one must consider Exodus 34:6-7 as a full-orbed look at Jehovah in the Old Testament which describes Him as one “who will by no means clear the guilty” but also depicts Him as “merciful and gracious, slow to anger, and abounding in steadfast love and faithfulness”. More importantly, Jesus made the Father known (exegesato, literally, “exegeted him”; NASB: “explained him”) according to John 1:18 (cf. John 14:8-9). Paul Benware aptly summarizes,
What is seen in the character of Christ is exactly the same as the character of God of the Old Testament: One who is holy and righteous and yet is slow to anger and loyal in His love (Paul Benware, Survey of the Old Testament [Chicago: Moody, 1993], 236).