1. The Law of Moses was directed toward Israelites, no one else.  See Exodus 19:3 – 6, Deuteronomy 5:1 – 3.  Other nations were condemned for their various bad behaviors, but never were they condemned for failing to follow the Law.  Neither you nor I are Israelites.  We are not part of the target audience of the Law of Moses.
2. Peter in Acts 10:1 – 16, a Jewish Christian, was told to kill and eat all manner of unclean animals to illustrate that uncleanness was now a thing of the past.
3. In Acts 15:1 – 29, the apostles and elders (confirmed by the Holy Spirit) determined that Gentiles were not required to follow the Law of Moses.
4. Paul wrote in Romans 13 (the whole chapter) that distinctions about foods are not appropriate.
5. God predicted the destruction of the Temple in 70 AD through Daniel, Zechariah, and Jesus (Daniel 9:24 – 27, cited by Jesus in Matthew 24:15; Zechariah 12:10, cited in John 19:37, Zechariah 13:1 – 9, cited by Jesus in Matthew 26:31, Matthew 24:1 – 44).  God made it impossible for the Israelites to continue with the Law (see Hebrews 9:8).  Some claim that this only cancelled the part of the Law concerning sacrifices, but not the dietary laws or the holidays.  The Law never makes that distinction.  It is all or nothing.  The holidays cannot be observed, either, because they were all to be celebrated at the Temple.
6. The Law passed away with the destruction of the Temple in 70 AD: Hebrews 8:7 – 13, 2 Corinthians 3:4 – 11.
7. Today, the chosen, the people of God, are the faithful: Romans 9:6 – 8, 11:17 – 23, Galatians 3:7 – 9, 26 – 29.