Can we always resist temptations?
We can always resist temptations, because no temptation can force us into sin, and because God will always help us if we ask Him.
(a) God does not demand the impossible; however He warns us that in our efforts to overcome temptation we must not rely entirely on ourselves but must seek His help.
(b) God permits us to be tempted in order to make us realize our weakness, to test our faith, and to help us by His grace to strengthen virtue by practice and to obtain the reward of eternal life.
(c) The most effective means of overcoming temptation are prayer, mortification, frequent Confession and Holy Communion, and avoiding idleness and the near occasion of sin.