What does the Bible say about hollow religion?

In 2 Timothy 3:4-5, the apostle Paul describes individuals who exhibit a form of godliness yet lack the transformative power of God. These are not atheists or outsiders but those within the church who profess faith while their lives reflect love for pleasure over love for God. They may have the language and rituals of faith, but their actions betray a profound estrangement from the true essence of godliness. Such hollow religion is a warning to believers to ensure that their faith is not merely outwardly expressed but genuinely rooted in a relationship with God.