In plain words
It is a matter of great joy that you have vowed yourselves to preaching and teaching this Bhagavad Gītā, and are spreading the principle of God throughout the country. But through the influence of this Kali age, the people in society have much cleverness and very little goodness. As learning grows, doubts grow too. They rush forward to criticise every little thing. Even when the meaning is explained, though they lack the power to grasp it, they only criticise, and strut about in great pride. That is the mark of those who know little. We must recognise such conditions and follow a way that leaves them no room for any doubt at all. You are people who trust God completely. You are renunciants who have dedicated your very lives to bringing God's divine principle to the common people through preaching and teaching. You are yogis who have mastered the senses and made that divinity cling fast to your hearts. But today, through our own preaching and teaching, we ourselves have been raising doubts of certain kinds among the people. God is one! We ourselves say He is all-pervading, all-knowing, all-powerful.
The principle of Brahman dwells in every living being as the Ātma
Religions differ, but the path is one; cloths differ, but the thread is one; ornaments differ, but the gold is one; the colours of cattle differ, but the milk is one; the darśanas differ, but God is one; the colours of flowers differ, but the worship is one; not knowing this, men lose their wits and are bound in many bonds for the sake of a living.