The Lord will forsake us!?
"Thus says God: ‘Why do you transgress the commandments of the LORD, so that you cannot prosper? Because you have forsaken the LORD, He also has forsaken you.’ ”(2 Chronicles 24:20)
This "forsaking" is not eternal separation. Throughout the Bible, God continues to work with His stubborn people (Nehemiah 9:30-31, Psalm 103:10). He even promises an end-times restoration for the nation of Israel. This is not because they deserve it, but for His own name's sake (Ezekiel 36:22-24).
Instead, this forsaking impacts fellowship and blessing (Isaiah 59:2, Psalm 80:3). God's people lost His prosperity because they chased empty idols (Jeremiah 2:13, Jonah 2:8). They chose the way of death instead of life. The same happens to us if we distance ourselves from God's heart and pursue the things of the world (James 4:4).
Fellowship under the New Covenant
Under the New Covenant, believers have absolute assurance. The Holy Spirit will never leave us (Hebrews 13:5, John 14:16-17) because of the perfect sacrifice of Jesus (Hebrews 10:14). However, we lose God's favor and walk in frustration when we follow our fleshly desires (Galatians 5:16-17).
Sin grieves the Spirit and provokes God to jealousy (Ephesians 4:30, 1 Corinthians 10:22). This happens because we choose the very sins Christ died to free us from (Galatians 1:4, 2 Corinthians 5:15). He liberated us so we could walk intimately with Him.
The Promise of Restoration
Nonetheless, we can take great encouragement in God's mercy. If we humbly repent, God promises to draw near to us again (James 4:8, 2 Chronicles 7:14). He remains a loving Father despite our many failures (Romans 5:8, 2 Timothy 2:13). Like the father of the prodigal son, God rejoices when a wayward child returns (Luke 15:20-24). He is never begrudging. He is always ready to forgive and abounds in mercy (Psalm 86:5, Nehemiah 9:17).