Deu 19:15, Mar 14:57-59 | ESV | STEP | A single witness shall not suffice against a person for any crime or for any wrong in connection with any offense that he has committed . Only on the evidence of two witnesses or of three witnesses shall a charge be established .

Deuteronomy 19:15

Laws Concerning Witnesses

15 “A single witness shall not suffice against a person for any crime or for any wrong in connection with any offense that he has committed. ^aOnly on the evidence of two witnesses or of three witnesses shall a charge be established.

Mark 14:57-59

57 And some stood up and bore false witness against him, saying, 58 ^b“We heard him say, ^c‘I will destroy this temple ^dthat is made with hands, and in three days I will build another, ^enot made with hands.’” 59 Yet even about this their testimony did not agree.