Acts 4:9-10 If we this day are judged for a good deed done to a helpless man, by what means he has been made well, (10) let it be known to you all, and to all the people of Israel, that by the name of Jesus Christ of Nazareth, whom you crucified, whom God raised from the dead, by Him this man stands here before you whole.
Peter and John were declaring to these leaders that their life was a testimony to the resurrection of Jesus. Acts 10:40-43 Him God raised up on the third day, and showed Him openly, (41) not to all the people, but to witnesses chosen before by God, even to us who ate and drank with Him after He arose from the dead. (42) And He commanded us to preach to the people, and to testify that it is He who was ordained by God to be Judge of the living and the dead. (43) To Him all the prophets witness that, through His name, whoever believes in Him will receive remission of sins.”
Peter and John had the personal experience of the resurrected Jesus. This was their witness. As His disciples, we must be carrying about in our body the resurrected Jesus. This is our witness. II Corinthians 4:10 always carrying about in the body the dying of the Lord Jesus, that the life of Jesus also may be manifested in our body.
For we have died with Christ and our life is in Christ. Colossians 3:3 For you died, and your life is hidden with Christ in God.
To Peter and John, their life did not matter anymore. They had died with Christ and it was the resurrected Jesus who was now living through them.
The disciples were witnesses of the Holy Spirit operating in them. The Father raised Jesus from the dead through His Holy Spirit. Romans 8:11 But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you.
As the disciples were being questioned, they were acutely conscious that they were witnesses to the resurrected Jesus living and working powerfully through them, through His Holy Spirit.
As the disciples were witnesses to the risen Jesus, they were witnessing that Jesus has been ordained by God to be the judge of the living and the dead. When we witness the resurrected Jesus living through us, we are also telling people that Jesus is the judge of the living and the dead. Acts 17:30-31 Truly, these times of ignorance God overlooked, but now commands all men everywhere to repent, (31) because He has appointed a day on which He will judge the world in righteousness by the Man whom He has ordained. He has given assurance of this to all by raising Him from the dead.”
This message of God judging the world through Jesus because He was raised from the dead, needed to be made known to the leaders. The disciples saw themselves as witnesses for this purpose.
The leaders also needed to know that Jesus was the seed of David according to the flesh but He was the Son of God. This was made known by His resurrection from the dead. Romans 1:3-4 concerning His Son Jesus Christ our Lord, who was born of the seed of David according to the flesh, (4) and declared to be the Son of God with power according to the Spirit of holiness, by the resurrection from the dead.
This Jesus was the one to whom the law, the psalms and the prophets witnessed. This the leaders needed to know. They could not put Jesus aside.
Peter and John were fully accomplishing their task of being His witnesses. We too need to see ourselves as being His witnesses as the Lord takes us before various groups, who question us. They emphasised before the leaders that the lame man was made whole.
This must be our position of strength from which we must witness to the world. The Lord gives wholeness to those who come to Him. There is no need for us to be apologetic or reticent about our stand for Jesus. Let us be bold and declare out in the open that Jesus gives wholeness. Why should we be afraid or ashamed of declaring Jesus, who does what is good for man and creation?
Colossians 1:21-22 And you, who once were alienated and enemies in your mind by wicked works, yet now He has reconciled (22) in the body of His flesh through death, to present you holy, and blameless, and above reproach in His sight—
Let us realise that the devil is defeated by Jesus on the cross and so we need not be afraid of him or his threats to us. Jesus makes a person whole.
https://drive.google.com/file/d/18sDidqjn1D51HHpnewxKAROQPyhy17Vb/view?usp=share_link