James 5:16 Context
The book of James is a call to action for believers to ensure their faith is authentic and to produce words and deeds accordingly.
The first chapter begins the call by addressing our reaction to trials and our response to hearing the Word of God.
James 5:16 meaning and explanation

Understanding James 5:16 for Christians
James 5:16 Meaning
The book of James is a practical book, filled with wisdom for everyday living.
The fifth chapter begins with a warning to rich oppressors that God is watching and will turn things against them. This flows into a call for patience that justice will be done.
From there, James goes on to talk about the effectiveness of prayer, specifically when it comes to healing. He tells his believers to call the elders to pray and anoint the sick with oil.
But then the passage takes a surprising turn: Healing is linked to confession. Why is that?
So many things in our lives have a spiritual component that we sometimes ignore. There is a spiritual aspect to our relationships, our jobs, and our health.
James 5:16 Bible study guide and interpretation

James 5:16 confession and prayer explained
If we ignore the importance of confession and repentance, we might be missing out on the healing God wants for us. Being righteous—i.e., having our sins forgiven—makes a difference.
And the great news is, we don’t have to pray alone. God asks us to pray in community, and have other righteous people pray over us as well.
And he promises that these prayers have a great effect—they matter and have a great power.
There is hope that comes in prayer and not just our own prayers, but the prayers of our Christian brothers and sisters.
James 5:16 meaning in context of prayer and healing
James 5:16 Application
If you’re sick, have you considered asking your elders to pray over you? Maybe consider using oil as well, to anoint you as they call upon God for your healing.
This sounds old-fashioned and maybe even weird to our modern ears, but God’s Word is filled with wisdom that surpasses our own cultural norms of today.
“Be strong and courageous. Do not be afraid or terrified because of them, for the LORD your God goes with you; he will never leave you nor forsake you.”