How do we know God is our rock and salvation?

In Psalm 95, the psalmist refers to the Lord as the rock of our salvation, indicating the strength and stability He provides to His people. This idea is further supported by Paul's affirmation in the New Testament that the rock corresponds to Christ Himself. Our salvation, based on faith in Christ, is eternal, as He offers not only physical sustenance but spiritual wholeness, being the source of living water springing up to everlasting life. This truth affirms His unchanging nature and role in our redemption.