Whether zeal is an effect of love?

Objections

Objection 1 : It would seem that zeal is not an effect of love. For zeal is a beginning of contention; wherefore it is written (1 Cor. 3:3): "Whereas there is among you zeal [Douay: 'envying'] and contention," etc. But contention is incompatible with love. Therefore zeal is not an effect of love.
Objection 2 : Further, the object of love is the good, which communicates itself to others. But zeal is opposed to communication; since it seems an effect of zeal, that a man refuses to share the object of his love with another: thus husbands are said to be jealous of [zelare] their wives, because they will not share them with others. Therefore zeal is not an effect of love.
Objection 3 : Further, there is no zeal without hatred, as neither is there without love: for it is written (Ps. 72:3): "I had a zeal on occasion of the wicked." Therefore it should not be set down as an effect of love any more than of hatred.