There is much tradition of men in religion (Matthew 15:1-14). Things not found in God’s word are put forth as doctrine and people accept such as truth (Jeremiah 23:30-33). For example, December 25th as the birth of Christ. Peter as the first Pope. Baptizing babies. Calling men “Reverend” and “Father.”Becoming a saint after death. Lent. Church baking projects. Church sponsored recreation, like ball teams and other games of contest. Praying for the dead. etc. etc.
Read the New Testament and see what the church taught and compare it to what you see in your church. Or pick a church practice and request that a church leader show you that practice in the Bible. You will be amazed when the church leader does a lot of talking but cannot show Bible authority. “Prove all things” saith the word of God (1 Thessalonians 5:21). So challenge your church leaders to prove their practices from the Bible (Acts 17:11).
Hope to hear from you or see you at the services.