Yohanes 6:30

6:30 So they said to him, “Then what miraculous sign will you perform, so that we may see it and believe you? What will you do?

Yohanes 12:38

12:38 so that the word ¹  of Isaiah the prophet would be fulfilled. He said, ²  “Lord, who has believed our message, and to whom has the arm of the Lord ³  been revealed?” ⁴ 

Yohanes 14:11

14:11 Believe me that I am in the Father, and the Father is in me, but if you do not believe me, ⁵  believe because of the miraculous deeds ⁶  themselves.

[12:38]  ¹ tn Or “message.”

[12:38]  ² tn Grk “who said.”

[12:38]  ³ tn “The arm of the Lord” is an idiom for “God’s great power” (as exemplified through Jesus’ miraculous signs). This response of unbelief is interpreted by the author as a fulfillment of the prophetic words of Isaiah (Isa 53:1). The phrase ὁ βραχίων κυρίου (Jo braciwn kuriou) is a figurative reference to God’s activity and power which has been revealed in the sign-miracles which Jesus has performed (compare the previous verse).

[12:38]  ⁴ sn A quotation from Isa 53:1.

[14:11]  ⁵ tn The phrase “but if you do not believe me” contains an ellipsis; the Greek text reads Grk “but if not.” The ellipsis has been filled out (“but if [you do] not [believe me]…”) for the benefit of the modern English reader.

[14:11]  ⁶ tn Grk “because of the works.”

[14:11]  sn In the context of a proof or basis for belief, Jesus is referring to the miraculous deeds (signs) he has performed in the presence of the disciples.