I just finished reading 'The Atonement: Its Meaning & Its Significance' by Leon Morris. This book was excellent and very thorough from the cover to the end. Morris does a great job in taking the many words found in the Bible that describe what Jesus did on the cross and breaking them down to explain what happened at the cross.
Words such as covenant, sacrifice, blood, propitiation, and justification are explained from a Biblical perspective and the context in which they are used is also drawn out to strengthen their meanings. Below is a quote from the book's epilogue that I believe summarizes the entire book and gives a hint at its great insight on explaining the atonement. I highly recommend this book for those who truly want to see the glorious truth and power that is found in the cross of Christ.
" The great thing about the cross is that God saves us by His grace. We do not merit our salvation, but receive it as a free gift. But every one of the categories at which we look reminds us that this has implications for the way we Christians are to live. The cross is the making of a new covenant, but this means that we are to live as the people of God. It is the perfect sacrifice, but we are to present our bodies as living sacrifices. If Christ died for us, we are to live for Him. He has carried our sins away, as the Day of Atonement reminds us, and won for us access into the presence of God. And this means we have a great privilege. We must neither neglect it nor use it carelessly. Christ our Passover has been offered for us so that we, the church, constitute the people of God, and so that we should cleanse out every evil thing. Passover warns us against complacency. The Lamb of God brings us back to the thought of the perfect sacrifice with all that that means."
And for my next book...."The Cross" by Martyn Lloyd Jones