How do we know godliness is beneficial for Christians?

The benefit of godliness is emphasized in 1 Timothy 4:8, where it states that godliness is profitable unto all things, having promise of the life that now is, and of that which is to come. This indicates that living a life of godliness equips believers for practical Christian living in the present while also assuring them of blessings in eternity. The spiritual exercises we undertake in our pursuit of godliness ultimately serve to deepen our relationship with God and strengthen our faith, leading to spiritual growth and fulfillment. In contrast to temporary benefits from physical endeavors, the eternal significance of godliness highlights its irreplaceable value in the life of a believer.