How do we know that believers are with the Lord after death?

The assurance of believers being with the Lord after death is explicitly stated in 1 Thessalonians 4:14, where it says that God will bring with Him those who have fallen asleep in Jesus. This emphasizes that believers do not truly die but rather transition to a glorious existence with Christ. Their physical separation from us is temporary, as indicated in 1 Corinthians 15:55-57 where it describes the victory over death through Jesus Christ. Believers can confidently face death knowing it is a passage into a better life.