The above links will not work for some reason, but the ones below will.

Colossians 3:11-15 - Put on Christ and Put on Unity
https://samedia-b2-east.b-cdn.net/com-sermonaudio-sermons2/5624237506970.mp3

Acts 2:22-37 - Peter's Sermon
https://samedia-b2-east.b-cdn.net/com-sermonaudio-sermons2/5624232754587.mp3