What does the Bible say about the loving kindness and truth of God?

In Psalm 40:11, David implores the Lord not to withhold His tender mercies, emphasizing the importance of God's loving kindness and truth in preserving him through innumerable evils and iniquities. This is reflective of the believer's reliance on God's grace and mercy for salvation and continual sustenance. God's truth reassures believers of His promises and faithfulness, showcasing that His mercies indeed endure forever. Such understanding is crucial for Christians as it delineates their dependence on God's character rather than their own abilities.