Hebrews 9.26 shows indeed that it's the blood of Christ that purges the conscience, not water. Ephesians 5.26 speaks of 'the washing of water by the word', which is about the cleansing effect of the Scriptures, not about water baptism.
The sacrifice includes the death / burial / and RESS. and
without the RESS. there would be no power.
The RESS. is what showed Jesus was in fact
the Messiah. (1Cor.15) (Phil.3:10) (1Peter 1:3) (2Peter 3:21)
Ro 1:3 Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh;
4 And
declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:
Php 3:10 That I may know him, and
the power of his resurrection, and the fellowship of his sufferings, being made conformable unto his death;
1Pe 1:3 ¶ Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy
hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead,
1Pe 3:20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is,
eight souls were saved by water. 21 ¶ The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,)
by the resurrection of Jesus Christ: