Do you believe the words the Nicene Creed? They are orthodox. You should believe them. However, there appears to be confusion as to what baptism really is. The reformed creeds take it seriously. So should we. It is the sign and seal of the covenant of God - not to be taken lightly. Should we give this sign and seal to someone we know to be an unbeliever? We do. Babies. They by their very nature cannot believe. Has God given them His seal that they are part of his covenant family? No.
No matter what the minister says when performing this sacrement, we must go back to the confessions, creeds, and the word of God itself. It is clear even when the one administering it makes it unclear. Only a believer, a Christian, should be given this seal of one's faith.