Peter, James, and John had gone up into the hills with Jesus; and they saw Him transfigured before their very eyes. Jesus took on the glory of His resurrection body and was standing there talking with Moses and Elijah. Moses represented the Law, and Elijah represented the prophets.
The voice of the Father came from heaven and said, "This is My beloved Son, in whom I am well pleasd. Hear Him!" God had spoken through the Law, then through the prophets, but ws now speaking through His Son (Hebrews 1:1,2). His is the revelation of God.
Paul was back in prion at a very low point in his life. That which he had dreamed of for many years, to bear witness of Christ before the Jews, had been a disaster. He was rejected by his brethren for whom he had such a deep love and desire to win to Christ. he was discouraged.
So the Lord encouraged Paul. He said, "Paul, you've testified of Me in Jerusalem. It was a total fiasco, but that's all right; you testiies. Now you must testify of Me in Rome." So the LORD took him out of the doldrums of his past and gave him a callfor his future. He set the past aside, reaching for what God had in the future, and it's important that we do the same.
There may be times in your life when you have been forsaken by your friends, maybe even in the body of Christ. But the LORD will never forsake you. You can be certain of that. Though Paul was forsaken by his brethren, he was not forsaken by his LORD. The LORD stood with him in those dark experiences of his life evn as the LORD will always stand by you.
The Burnt Offering, the Grain Offering, the Peace Offering, the Sin Offering. All these sacrifices could only cover a person's sins. But Jesus, in His sacrifice went one better! Rather than just covering our sins, He put away our sins once and for all
The word "atonement" can best be understood if you break it up into these syllables. At-one-ment. For it is through Jesus Christ that we can become at one with God. His sacrifice puts our sins away so that we can be at one with God because the blood of Jesus Christ cleanses us from all sin.