"For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God." - 1 Corinthians 1:18
As You were voluntarily raised upon the cross for our sake, grant mercy to those who are called by Your Name, O Christ God; make all Christians glad by Your power, granting them victories over their adversaries, by bestowing on them the Invincible trophy, Your weapon of Peace (Kontakion in Tone 4).