The Chief Rabbi of Ukraine has asked for Christians to recite the following verses of Psalm 31 aloud.
Psalm 31 21-24
21 Praise be to the Lord, for he showed me the wonders of his love when I was in a city under siege.
22 In my alarm I said, “I am cut off from your sight!” Yet you heard my cry for mercy when I called to you for help.
23 Love the Lord, all his faithful people! The Lord preserves those who are true to him, but the proud he repays in full.
24. Be strong and take heart, all you who hope in the Lord.