“But I say this, that every one of you says, I am of Paul, and I of Apollos, and I of Cephas, and I of Christ. Is Christ divided? Was Paul crucified for you, or were you baptized in the name of Paul?” (1 Corinthians 1:12-13 MKJV)
There's your answer, S. Turn to the One Who was crucified for you - the Lord Jesus Christ Whom we preach. Yes, the Lutheran Church and other works of men talk about Him and use His Name, but they don't preach Him because they don't know Him or His ways.
This is a great day for you. Thank God He brought you here with your question, so we could point you to your only Lord and Savior.
Read on our site in order to hear what the Holy Scriptures teach about Him. There you will find the Answer and all the answers He has taught us. It seems you're capable enough in English to understand, but let us know how you're doing and if we can help you in any way.