以弗所書第六章第17節：「還要藉著各樣的禱告和祈求，接受救恩的頭盔，並那靈的劍，那靈就是神的話。」And receive the helmet of salvation and the sword of the Spirit, which Spirit is the word of God, by means of all prayer and petition.（Ephesians 6:17-18）
