The miracles are performed by our YAHWEH only and not by us. HEperforms them to demonstrate HIS power so those seeing them may believe in HIM and become saved. Our Lord YESHUA is the greatest miracle, and our FATHER has demonstrated HIS love and power through HIM so that if we believe and accept HIM, we will be saved.
Exodus 4:6-9 Furthermore the Lord said to him, “Now put your hand in your bosom.” And he put his hand in his bosom, and when he took it out, behold, his hand was leprous, like snow. And He said, “Put your hand in your bosom again.” So he put his hand in his bosom again, and drew it out of his bosom, and behold, it was restored like his other flesh. “Then it will be, if they do not believe you, nor heed the message of the first sign, that they may believe the message of the latter sign. And it shall be, if they do not believe even these two signs, or listen to your voice, that you shall take water from the river and pour it on the dry land. The water which you take from the river will become blood on the dry land.”https://bible.com/bible/114/exo.4.6-9.NKJV
Psalms 78:2-7 I will open my mouth in a parable; I will utter dark sayings of old, Which we have heard and known, And our fathers have told us. We will not hide them from their children, Telling to the generation to come the praises of the Lord, And His strength and His wonderful works that He has done. For He established a testimony in Jacob, And appointed a law in Israel, Which He commanded our fathers, That they should make them known to their children; That the generation to come might know them, The children who would be born, That they may arise and declare them to their children, That they may set their hope in God, And not forget the works of God, But keep His commandments;https://bible.com/bible/114/psa.78.2-7.NKJV
Romans 15:19 [Even as my preaching has been accompanied] with the power of signs and wonders, [and all of it] by the power of the Holy Spirit. [The result is] that starting from Jerusalem and as far round as Illyricum, I have fully preached the Gospel [faithfully executing, accomplishing, carrying out to the full the good news] of Christ (the Messiah) in its entirety.https://bible.com/bible/8/rom.15.19.AMPC