53 Did Paul forbid circumcision

This time it's Paul vs Paul

In the New Testament letter Galatians, written by Paul:

Paul sternly claims that anyone who gets circumcised falls away from grace

Galatians 5:2 Mark my words! I, Paul, tell you that if you let yourselves be circumcised, Christ will be of no value to you at all. 3 Again I declare to every man who lets himself be circumcised that he is obligated to obey the whole law. 4 You who are trying to be justified by law have been alienated from Christ; you have fallen away from grace. 

In Galatians again:

Paul is critical of anybody who gets circumcised 

Galatians 6:12 Those who want to make a good impression outwardly are trying to compel you to be circumcised. The only reason they do this is to avoid being persecuted for the cross of Christ. 

But in the New Testament Book of Acts:
Paul has a disciple get circumcised!

Acts 16:1 Paul came to Lystra, where a disciple named Timothy lived, whose mother was a Jewess and a believer, but whose father was a Greek. 2 The brothers [Christians] at Lystra spoke well of him. 3 Paul wanted to take him along on the journey, so he circumcised him because of the Jews who lived in that area, for they all knew that his father was a Greek.  

Recap: Paul teaches his followers that Christ won't be of value to them any longer if they let themselves get circumcised. But one of Paul’s followers lets himself get circumcised by Paul. Hmm, it sounds to me like a double standard or moral relativity.