“For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand that we should walk in them” (Ephesians 2:10).
Unlike some people, God is not so “heavenly minded” that He is of no earthly good. The practicality of His great plan of salvation in Christ is one clear demonstration of this.
Salvation from sin is intended to make you spiritually minded (Colossians 3:1-2; Matthew 6:19-21). It also requires you to “live soberly, righteously, and godly in this present age” (Titus 2:12). God’s workmanship of your salvation is not demonstrated by cloistering yourself in a monastery.
Consider Ephesians 2:10’s two tangible, down-to-earth proofs of every Christian’s rescue from the ruin of the spiritual blight called sin:
Good works. Because of deity’s work for us (Ephesians 2:4-9), we are to zealously desire to allow them to work through us (v. 10). The eternally purposed plan was that those saved by Christ would continue doing and teaching “all that Jesus began to do and teach” (Acts 1:1). This is clearly why the church which Christ redeemed out of sin is called His body (Ephesians 1:22-23). In Christ, every new creation (2 Corinthians 5:17) has been created for good works. These good works include evangelism (to teach the lost how to be saved), edification (to encourage the saved to be faithful unto death), and benevolence (to help the needy in their distress).
Continuous obedience. Since God has already “prepared beforehand” what good works His sons are to be engaged in, the child of God is not tasked with deciding what to do; this has already been addressed. His responsibility is to identify what it is that God has already pre-authorized and then transform his life into the practice of continuous obedience (i.e., walking in them).
When a child of God’s life is focused on continuously obeying God and zealously helping others there is ample, tangible proof of salvation.