What does Psalm 34:19 mean?

In addition to David's experiences of being rescued by God, other incidents in biblical history testify to the Lord's deliverance of His people. The case of Daniel's three friends being cast into a white-hot furnace because of their allegiance to God is one such incident (Daniel 3). Another is the experience of Daniel being left in a den of hungry lions because of faithfulness in praying only to the true God. God miraculously kept him safe in the lions' den and delivered him out of it (Daniel 6).

Biblical writers like David, who extoll the protection and provision of God, also acknowledge that those who faithfully follow God still encounter significant challenges. Following godly wisdom helps us avoid the pitfalls that come with sin (Psalm 34:11–14). But even those who love God can suffer; in fact, some godly people suffer because of their faithfulness to the Lord (John 16:1–4). That was the case with Daniel and New Testament figures such as Paul (2 Corinthians 11:23–28). God's rescue, in those situations, can be immediate or physical. In other cases, it can be by giving believers the strength to endure the trial (Romans 8:28–30; John 16:33).

Isaiah 51:7 offers encouragement from the Lord to the righteous. He calls upon them to listen to Him and "fear not the reproach of man, nor be dismayed at their revilings." He assures His people that the wicked will be destroyed, whereas His righteousness will last forever, and His salvation will be to all generations (Isaiah 51:8).