The cause being finite, the effect must be finite. If the cause is eternal the effect can be eternal, but all these causes, doing good work, and all other things, are only finite causes, and as such cannot produce infinite result.
Evil company is always to be shunned; because it leads to lust and anger, illusion, forgetfulness of the goal, destruction of the will (lack of perseverance), and destruction of everything. (Narada Bhakti Sutra)
It is an irrational claim to believe in the teachings of Jesus Christ and at the same time to hold that the greater part of his teachings have no application at the present time. If you say that the reason why the powers do not follow them that believe (as Christ said they would) is because you have not faith enough and are not pure enough-that will be all right. But to say that they have no application at the present time is to be ridiculous.