Choice of Two Mountains Hebrews 12:18-29 The author uses two mountains to show the differences between the two covenants from God. Mt.Sinai, where the law was given and Mt.Zion, where grace and forgiveness are given. Each person must choose between the two.
Loving Each Other Hebrews 13:1 The greatest proof of the reality of Christ the church can give to the world is for us to love each other as He loved us, for this type of love does not exist outside of God's Kingdom.
Strangers, Prison and Persecution Hebrews 13:2-3 The author continues with instructions specific to the church body that fill out the previous command to love each other.