"Christ "gave Himself for our sins." (Gal.1:4). That is to say, He bought them, and paid the price for them.
This is a simple statement of fact; the language used is that commonly employed in referring to purchases.
---This follows from the fact that He has purchased our sins, to 
deliver us from ourselves.
---Our sins are part of ourselves; nay, they are the whole of us, for our natural lives are nothing but sin.
---Our sins are part of ourselves; nay, they are the whole of us, for our natural lives are nothing but sin.
---Therefore, Christ could not buy our sins without buying us also.
Of this fact we have many plain statements.
He "gave Himself for us, that He might redeem us from all iniquity." Titus 2:14.
"Ye are not your own; for ye are bought with a price." 1 Cor. 6:19." E.J. Waggoner