I thought I'd share with you a blessing I pray over my children every night before they go to bed. It's a combination of four passages of Scripture (Numbers 6:24-26, 3rd John 2, Psalms 91:10,16, II Thessalonians 3:3)
May the Lord bless you. May the Lord keep you. May the Lord cause his face to shine upon you and be gracious to you. May the Lord lift up his countenance towards you and give you peace. May you prosper in all things and be in good health, even as your soul prospers. No evil shall befall you. Neither shall any plague come near your dwelling. With long life he shall satisfy you and show you his salvation. The Lord shall establish your hearts and guard you from the evil one.