The basic reason for this choice [of reading] is to be found in John 10:30:“The Father and I are one[” (hen). Note that Jesus is not saying,“The Father and I are numerically one” (heis),but uses a term meaning “we are together” (Greek hen,as used again in v.38:“The Father is in me and I am in the Father”). The union of the Father and Son does not blot out the difference and individuality of each. Union rather supposes differentiation. Through love and through reciprocal communion they are one single thing,the one God-love. [Leonardo Boff,Trinity and Society,trans. Paul Burns (Maryknoll,N.Y.:Orbis,1988),5]