"For if we died with Him, we shall also live with Him. If we endure,We shall also reign with Him. If we deny Him, He also will deny us." 2 Timothy 2.11-12
We will live with Jesus IF we died with Him.
We will reign with Him IF we persevere. IF we deny Him, He will deny us.
In other words, the victory over death is conditioned by the attitudes of sacrificial faith: to die, to persevere and not to deny the Lord Jesus Christ.