Question put forward on Facebook: "How do we reconcile the God of the Old Testament and the God of the New Testament?"
The God of the OT is the God described as "merciful and gracious, slow to anger, abounding in lovingkindness" (Exodus 34, Psalm 103).
The God of the NT is the God who killed Ananias and Saphira.
The God of the OT is the God who had mercy on Ahab-- the worst king of the northern tribe of Israel-- and didn't judge him when he repented. (I Kings 21)
The God of the NT is the God who does not forgive the one who has all of Jesus and rejects him (Hebrews 6; Hebrews 10:26ff)
God is merciful throughout the Bible.
God is judging throughout the Bible.
God is love throughout the Bible.
God is vengeful throughout the Bible.
Even as it is said of Jesus, so is God the Father: The same, yesterday, today and forever. He never changes.
Only our ability to respond to Him changes. Praise God that He sent His Son, so that we longer have to respond in legalism and judgement, but can now rest in repentance and His forgiveness!