Paul and Believing the Holy Spirit

Awhile back I had addressed this in a blog entitled Did Paul Disobey the Holy Spirit. I haven’t changed my mind about what I said there, but I do believe I need to address certain implications that were perhaps not addressed in that blog. For example, the text says in Acts 21:4 the disciples in Tyre “said to Paul through the Spirit that he should not go up to Jerusalem.” This certainly seems like a direct command from God. Is it, and if so, why wouldn’t Paul be disobedient to the Holy Spirit by continuing on to Jerusalem?