Ephesians 4:21

[I am] assuming that you have heard Him [i.e., through the Gospel message] and were taught the truth that is in [harmony with] Jesus.

Ephesians 1:13

You [Gentiles] also, who are in Christ, after having heard the message of truth, the good news about your salvation, and [after] believing in Him, were sealed [i.e., as evidence of ownership] with the promised Holy Spirit. [or, "the Holy Spirit who brings promises"].

Matthew 17:5

While he was still talking, suddenly a bright cloud engulfed them. Just then, a voice spoke out of the cloud, saying, "This is my dearly loved Son, who is very pleasing to me; listen to Him."

Luke 10:16

The person who listens to you, [actually] listens to me. And the person who rejects you, [actually] rejects me. And the person who rejects me, [actually] rejects Him who sent me [i.e., God]."

John 1:17

For the law was given through Moses; [but] God's favor and truth came through Jesus Christ.

John 10:27

My sheep listen to my voice, and I know them, and they follow me.

John 14:6

Jesus answered him, "I am the way [to God], and the truth [to believe], and the life [to live]. No one can go to the Father, except through [believing in] me.

John 14:17

He is the Holy Spirit of truth [i.e., who reveals truth], whom the world cannot receive, for it does not see Him or know Him. [But] you know Him, for He lives with you, and will be within you.

Acts 3:22-23

Moses [expressed it when he] said [Deut. 18:15], 'The Lord God will raise up a prophet for you from among your brothers; He will be like me [in some ways] and you must all pay attention to Him in everything He says to you.'

2 Corinthians 1:20

For [no matter] how many promises God has made, in Christ [the answer] is "yes" [i.e., Christ has fulfilled all of God's promises to mankind]. Also, through Christ, the "amen" [Note: This word is always translated elsewhere as "May it be so"] can be said by us in order to honor God.

2 Corinthians 11:10

As sure as the truth of Christ is in my heart, no one will stop me from boasting about this [arrangement] throughout the regions of Achaia. [Note: This was the province where Corinth was located].

Colossians 2:7

rooted and built up in [your relationship to] Him, established by your faith [or, "in the faith"], just as you were taught, overflowing with thanksgiving.

Hebrews 3:7-8

So, even as the Holy Spirit said [Psa. 95:7-11], "Today, if you hear His [i.e., God's] voice,

1 John 5:10-12

The person who [sincerely] believes in God's Son has the evidence [of it] within his heart, [confirming God's testimony]. The person who does not believe God [i.e., what He says about Jesus], accuses Him of lying, because he has not accepted the [irrefutable] testimony of God concerning [the identity and mission of] His Son.

1 John 5:20

And [in addition], we know that the Son of God has come [in a physical body, See 4:2] and has given us understanding, so that we can know the True One [i.e., God], and that we are in [fellowship with] the True One, even His Son Jesus Christ. This Son is the true God and eternal life.

Treasury of Scripture Knowledge

Summary

If so be that ye have heard him, and have been taught by him, as the truth is in Jesus:

Bible References

Heard

Matthew 17:5
While he was still talking, suddenly a bright cloud engulfed them. Just then, a voice spoke out of the cloud, saying, "This is my dearly loved Son, who is very pleasing to me; listen to Him."
Luke 10:16
The person who listens to you, [actually] listens to me. And the person who rejects you, [actually] rejects me. And the person who rejects me, [actually] rejects Him who sent me [i.e., God]."
John 10:27
My sheep listen to my voice, and I know them, and they follow me.
Acts 3:22
Moses [expressed it when he] said [Deut. 18:15], 'The Lord God will raise up a prophet for you from among your brothers; He will be like me [in some ways] and you must all pay attention to Him in everything He says to you.'
Hebrews 3:7
So, even as the Holy Spirit said [Psa. 95:7-11], "Today, if you hear His [i.e., God's] voice,

As

Ephesians 1:13
You [Gentiles] also, who are in Christ, after having heard the message of truth, the good news about your salvation, and [after] believing in Him, were sealed [i.e., as evidence of ownership] with the promised Holy Spirit. [or, "the Holy Spirit who brings promises"].
John 1:17
For the law was given through Moses; [but] God's favor and truth came through Jesus Christ.
John 14:6
Jesus answered him, "I am the way [to God], and the truth [to believe], and the life [to live]. No one can go to the Father, except through [believing in] me.
2 Corinthians 1:20
For [no matter] how many promises God has made, in Christ [the answer] is "yes" [i.e., Christ has fulfilled all of God's promises to mankind]. Also, through Christ, the "amen" [Note: This word is always translated elsewhere as "May it be so"] can be said by us in order to honor God.
2 Corinthians 11:10
As sure as the truth of Christ is in my heart, no one will stop me from boasting about this [arrangement] throughout the regions of Achaia. [Note: This was the province where Corinth was located].
1 John 5:10
The person who [sincerely] believes in God's Son has the evidence [of it] within his heart, [confirming God's testimony]. The person who does not believe God [i.e., what He says about Jesus], accuses Him of lying, because he has not accepted the [irrefutable] testimony of God concerning [the identity and mission of] His Son.