The Holy Spirit is God and Jesus performed His miracles in the power of the Holy Spirit. So you are the one who does not understand Isaiah or even John 17.
Luke 11:13
13 "If you then, being evil, know how to give good gifts to your children, how much more shall your heavenly Father give the Holy Spirit to those who ask Him?" NAS
John 14:26
26 "But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all that I said to you.NAS
Ephesians 3:14-19
14 For this reason, I bow my knees before the Father, 15 from whom every family in heaven and on earth derives its name, 16 that He would grant you, according to the riches of His glory, to be strengthened with power through His Spirit in the inner man; 17 so that Christ may dwell in your hearts through faith; and that you, being rooted and grounded in love, 18 may be able to comprehend with all the saints what is the breadth and length and height and depth, 19 and to know the love of Christ which surpasses knowledge, that you may be filled up to all the fulness of God. NAS
1 Thessalonians 4:7-8
7 For God has not called us for the purpose of impurity, but in sanctification. 8 Consequently, he who rejects this is not rejecting man but the God who gives His Holy Spirit to you. NAS
Does the following read like Paul taught the Trinity?
1 Corinthians 8:4-6
5 For even if there are so-called gods whether in heaven or on earth, as indeed there are many gods and many lords, 6 yet for us there is but one God, the Father, from whom are all things, and we exist for Him; and one Lord, Jesus Christ, by whom are all things, and we exist through Him. NAS
Now tell me John10:10 why are you avoiding answering my questions.