The Pool of Bethesda and Church of St. Anne are located just north of the Temple Mount area in the Old City of Jerusalem. The Pool of Bethesda actually originally consisted of two pools and was used in the washing of sheep to be used as sacrifices in the temple. It was probably outside of the city walls at the time of Christ, and there is little doubt to its current location. In John 5, Jesus restores the impotent man enabling him to walk again at the Pool of Bethesda.

John 5:1-18
1: After this there was a feast of the Jews; and Jesus went up to Jerusalem. 
2: Now there is at Jerusalem by the sheep market a pool, which is called in the Hebrew tongue Bethesda, having five porches. 
3: In these lay a great multitude of impotent folk, of blind, halt, withered, waiting for the moving of the water. 
4: For an angel went down at a certain season into the pool, and troubled the water: whosoever then first after the troubling of the water stepped in was made whole of whatsoever disease he had. 
5: And a certain man was there, which had an infirmity thirty and eight years. 
6: When Jesus saw him lie, and knew that he had been now a long time in that case, he saith unto him, Wilt thou be made whole? 
7: The impotent man answered him, Sir, I have no man, when the water is troubled, to put me into the pool: but while I am coming, another steppeth down before me. 
8: Jesus saith unto him, Rise, take up thy bed, and walk. 
9: And immediately the man was made whole, and took up his bed, and walked: and on the same day was the sabbath. 
10: The Jews therefore said unto him that was cured, It is the sabbath day: it is not lawful for thee to carry thy bed. 
11: He answered them, He that made me whole, the same said unto me, Take up thy bed, and walk. 
12: Then asked they him, What man is that which said unto thee, Take up thy bed, and walk? 
13: And he that was healed wist not who it was: for Jesus had conveyed himself away, a multitude being in that place. 
14: Afterward Jesus findeth him in the temple, and said unto him, Behold, thou art made whole: sin no more, lest a worse thing come unto thee. 
15: The man departed, and told the Jews that it was Jesus, which had made him whole. 
16: And therefore did the Jews persecute Jesus, and sought to slay him, because he had done these things on the sabbath day. 
17: But Jesus answered them, My Father worketh hitherto, and I work. 
18: Therefore the Jews sought the more to kill him, because he not only had broken the sabbath, but said also that God was his Father, making himself equal with God. 

Purification is a necessary part of sanctification. The blood of Christ purifies and justifies the Christian. The blood of Christ also makes the Christian whole by restoring the image of God in the born again much as Christ made the lame man whole at the Pool of Bethesda.

Romans 8:1-6
1: There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. 
2: For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death. 
3: For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh: 
4: That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit. 
5: For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit. 
6: For to be carnally minded is death; but to be spiritually minded is life and peace. 

I John 1:6-7
6: If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth: 
7: But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin. 

Psalm 19:12-14
12: Who can understand his errors? cleanse thou me from secret faults. 
13: Keep back thy servant also from presumptuous sins; let them not have dominion over me: then shall I be upright, and I shall be innocent from the great transgression. 
14: Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer. 

II Timothy 2:19-22
19: Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, Let every one that nameth the name of Christ depart from iniquity. 
20: But in a great house there are not only vessels of gold and of silver, but also of wood and of earth; and some to honour, and some to dishonour. 
21: If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work. 
22: Flee also youthful lusts: but follow righteousness, faith, charity, peace, with them that call on the Lord out of a pure heart. 

Titus 2:12-15
11: For the grace of God that bringeth salvation hath appeared to all men, 
12: Teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world; 
13: Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; 
14: Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works. 
15: These things speak, and exhort, and rebuke with all authority. Let no man despise thee.