Christian answering questions too!

[ApeNotKillApe]

I also asked myself this question with regard to the Levitical laws found in the Old Testament, I think there are over 600 of them.  Many of which would be considered dated, and in some cases absurd by todays standards.  The straight answer is I think there are many parts that would not be relevant or observed today.  I view the Old Testament partly as a historical document and partly as instructions for the Hebrew people.  A lot of the practices were rendered obsolete, done away with, or changed with the new covenant.

Matthew 5:17-18
Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill. 
For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished.