Correct.
There is one God, the Father. He is the only true God, there are no others, there are no parts or "persons" to Him. God the Father is God alone. God's Word (logos) is His will, plan, or purposes. It is not a separate "Person," or entity from God. God has a will, a plan, for redemption. That logos became flesh when God caused Mary to conceive Jesus, God's human Messiah. IOW, Jesus Christ is God's Word made flesh. We have the written Word (the Bible) and the living Word (Jesus Christ).
The words "Holy Spirit" at times refer to God Himself. God IS "the Holy Spirit." In Acts 5:3-4, Ananias and Sapphira lied to the Holy Spirit, they lied to God Himself, they did not lie to a "Person" of God, they lied to God. "Holy spirit" can also refer to the gift that God gives to people. In the OT it was on some people, and it could be lost (Ps 51:11; 1 Sam 16:14). In Numbers 11:17-25, God took of the spirit that was on Moses and gave it to the 70 elders. He did not send a "Person" of Himself, he gave them holy spirit. In the NT, every Christian is sealed with the gift of holy spirit (Acts 2:38; Eph 1:13-14; more).
I have a car. My car is a Honda. That does not mean I have two cars.
God is the Father. God is the Holy Spirit. That does not mean there are two Gods, or two "Persons" of God.
Idolatry is worshiping something/someone as God who is not God. There is one God, the Father, who is the only true God (John 17:3; 1 Cor 8:6). Jesus Christ has a God, and he ascended to his God (John 20:17). John wrote his gospel so that we can believe that "Jesus is the Christ, the Son of God" (John 20:31). Nowhere in the Bible are we encouraged to believe in a triune God. Nowhere in the Bible is God ever described as a Trinity of "Persons," or more than one person. I am aware that "echad" is a plural noun, but it does not mean "compound unity." The word simply means "one."