2 being upset because they were teaching the people and proclaiming in Jesus the resurrection from the dead.
Acts 4:2 Cross References - WPNT
John 11:47-48
Acts 3:15
15 while you killed the Originator of life, whom God raised from among the dead, to which we are witnesses.
Acts 5:17
17 Then the high priest rose up, and all those with him (being the sect of the Sadducees); they were filled with jealousy
Acts 10:40-43
40 Him God raised on the third day, and gave Him to become visible,
41 not to all the people but to witnesses who had been chosen beforehand by God, to us, who ate and drank with Him after He arose out of the dead.
42 And He ordered us to proclaim to the people, that is to testify that He is the One who has been ordained by God as Judge of living and dead.
43 To Him all the prophets bear witness that through His name everyone who believes into Him will receive forgiveness of sins.”
Acts 13:45
45 But when the Jews saw the crowds, they were filled with envy and started speaking against the things said by Paul, contradicting and blaspheming.
Acts 17:18
18 Then certain philosophers, both Epicureans and Stoics, encountered him. Some said, “What might this idea-scavenger want to say?” Others said, “He seems to be a proclaimer of foreign deities”—because he was preaching Jesus and the resurrection.
Acts 17:31-32
31 because He has appointed a day in which He will judge the inhabited world in righteousness by the Man whom He has ordained; He has given assurance of this to all by raising Him from the dead.”
32 Well when they heard about the resurrection of the dead, some started scoffing, while others said, “We will hear you again about this”.
Acts 19:23
23 Now it was during that time that a serious disturbance concerning the Way occurred.
Acts 24:14-15
14 But I do profess this to you, that according to the Way that they call a sect, that is how I worship the ancestral God, believing all things that stand written throughout the Law and the Prophets,
15 having hope in God, which these themselves also look for, that there will be a resurrection of the dead, both the just and unjust.
Acts 24:21
21 unless it be for this one statement that I called out, standing among them, ‘Concerning the resurrection of the dead I am being judged by you today’.”
Acts 26:8
8 Why should any of you consider it incredible that God raises the dead?
Acts 26:23
23 —that the Messiah would suffer; that as the first to rise from the dead He would proclaim light to both ‘the people’ and the ethnic nations.”
Romans 8:11
11 And if the Spirit of Him who raised Jesus from the dead dwells in you, then He who raised the Christ from the dead will also give life to your mortal bodies because of His Spirit who dwells in you.
1 Corinthians 15:12-20
12 Now if Christ is being proclaimed as having been raised from among the dead, how can some among you say that there is no resurrection of the dead?
13 If there is no resurrection of the dead, not even Christ has been raised.
14 And if Christ has not been raised, then our preaching is empty, and so is your faith!
15 Further, we are even discovered to be false witnesses of God, because we have testified about God that He raised the Christ, whom He did not raise, if in fact the dead are not raised.
16 For if no dead are raised, neither has Christ been raised.
17 And if Christ has not been raised, your faith is useless; you are still in your sins.
18 Then those also who have fallen asleep in Christ are lost.
19 If it is only for this life that we have hoped in Christ, we are of all men most pitiable.
20 But indeed, Christ has been raised from the dead; He became the firstfruits of those who have fallen asleep.
1 Corinthians 15:23
23 But each one in his own order: Christ the firstfruits, then those who belong to Christ at His coming;