Stephen, filled with the Holy Spirit, looked up intently to heaven and saw the glory of God and Jesus standing at the right hand of God, and he said, "Behold, I see the heavens opened and the Son of Man standing at the right hand of God." (Acts 6:8-10; 7:54-59)
https://bible.usccb.org/bible/readings/122623.cfm
To say “yes” to the Prince of Peace, then, means saying “no” to war, to every war and to do so with courage, to the very mindset of war, an aimless voyage, a defeat without victors, an inexcusable folly. This is what war is: an aimless voyage, a defeat without victors, an inexcusable folly. To say “no” to war means saying “no” to weaponry. (“URBI ET ORBI" Message of Pope Francis, Christmas 2023). Today we celebrate the heavenly birthday of the first martyr for Christ, Saint Stephen.