You are spiritually clean in Christ by the Word of God.

“He who is bathed needs only to wash his feet, but is completely clean [katharos holos]; and you are clean [katharos]” (Jn 13:10)
“You are already clean [katharos] because of the word which I have spoken to you.” (Jn 15:3)
“that He might sanctify and cleanse [katharizo] her with the washing of water by the word” (Eph 5:26)
“who gave Himself for us, that He might redeem us from every lawless deed and purify for Himself His own special people” (Tit 2:14)
“If we confess our sins, He is faithful and just to forgive us our sins and to cleanse [katharizo] us from all unrighteousness.” (1Jn 1:9)
“Now the purpose of the commandment is love from a pure [katharos] heart, from a good conscience, and from sincere faith” (1Tim 1:5)
“let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience and our bodies washed with pure water.” (Heb 10:22)
“how much more shall the blood of Christ, who through the eternal Spirit offered Himself without spot to God, cleanse [katharizo] your conscience from dead works to serve the living God?” (Heb 9:14)
“Blessed are the pure [katharos] in heart, for they shall see God.” (Matt 5:8)
“So God, who knows the heart, acknowledged them by giving them the Holy Spirit, just as He did to us, and made no distinction between us and them, purifying their hearts by faith.” (Acts 15:8-9)
“Therefore, having these promises, beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.” (2Cor 7:1)
“not by works of righteousness which we have done, but according to His mercy He saved us, through the washing of regeneration and renewing of the Holy Spirit” (Tit 3:5)
“But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin.” (1Jn 1:7)
Reading: Ex 29-31; Jn 13