nope ... not all believers were indwelt with the Holy Spirit in OT times. what we have in our day and time is not the same as what Moses had in his day and time.
In our day and time do you believe God takes Holy Spirit from within a believer and distributes that to others ... that's what God did back in Moses' day:
Numbers 11:16-17 And the LORD said unto Moses, Gather unto me seventy men of the elders of Israel, whom thou knowest to be the elders of the people, and officers over them; and bring them unto the tabernacle of the congregation, that they may stand there with thee. And I will come down and talk with thee there: and I will take of the spirit which is upon thee, and will put it upon them; and they shall bear the burden of the people with thee, that thou bear it not thyself alone.
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24-25 And Moses went out, and told the people the words of the LORD, and gathered the seventy men of the elders of the people, and set them round about the tabernacle. And the LORD came down in a cloud, and spake unto him, and took of the spirit that was upon him, and gave it unto the seventy elders: and it came to pass, that, when the spirit rested upon them, they prophesied, and did not cease.
Jesus made clear that He had to go away in order for Him to send the Holy Spirit ... the Lord Jesus Christ had to come ... had to fulfill all the law and the prophets ... had to overcome the wicked one ... had to die, rise from the dead, and ascend into heaven before He could send that which was not available prior to His having ascended into heaven:
John 16:7 Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you.
And Hebrews makes clear that OT believers died without having received the promise and that what we have is "better":
Hebrews 11:39-40 And these all, having obtained a good report through faith, received not the promise: God having provided some better thing for us, that they without us should not be made perfect.
The Lord Jesus Christ received the promise of the Holy Spirit when He ascended up into Heaven:
Acts 2:33 Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed forth this, which ye now see and hear.
The Lord Jesus Christ shed shed forth this, which ye now see and hear ... after Pentecost something changed from before Pentecost.
I do not believe it's a different Holy Spirit than what was evident in OT ... but there is a difference in how we are indwelt. We do not have to pray to God to ask Him not to take away the Holy Spirit from us (as David died in Psalm 51:11) ... we receive Holy Spirit from the Lord Jesus Christ as an internal reality and presence and He abides, remains within us, forever (John 14:16) ... we do not have Holy Spirit distributed from another believer to us (Numbers 11). From and after Day of Pentecost, when a person is born again, it is a new creation which is birthed within the person the moment he or she believes in the Lord Jesus Christ.
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