I assume you are referring to Jhn. 4:24. What do you think "spirit" is? It simply means living intelligence, a mind, having thinking capability, a 'heart', and it does not negate the Father's physical eternal nature, but exists together in unity. You can read more about that in these books here -
So, "Yes, God the Father is “a Spirit” (
Jhn. 4:24 KJB), for it means God is living Intelligence, a living thinking all-Wise Being, an eternal Person, but it also means that God is physical, having an eternal “body” of substance, which has a glorious “Head”, which houses that infinite Intellect!"
"Throughout the Bible, the word “spirit” is often connected, in immediate context, to the “heart” or “mind” (intelligence):
Exo. 35:21;
Deu. 2:30;
Jos. 5:1;
Psa. 34:18, 51:10,17, 77:6, 78:8, 143:4;
Pro. 15:13, 17:22;
Ecc. 1:17;
Isa. 57:15, 65:14;
Eze. 11:19, 18:31, 21:7, 36:26;
Mar. 2:8;
Jhn. 4:24;
Rom. 2:29;
Heb. 4:12;
1 Pet. 3:4 KJB; and thus the “spirit” of man, the “heart” of man, is connected with reasoning and thoughts or intelligence:
1 Chr. 28:9;
Mat. 9:4;
Luk. 2:35, 5:22, 24:38;
Rom. 2:15;
Eph. 4:23;
2 Tim. 1:7 and so on; see also
Job 14:21;
Psa. 146:4;
Ecc. 9:5,6,10 KJB. See also
Pro. 8:22-31 KJB. There are no ‘spirits’ (intelligences) that exist without a body to act on behalf of the thinking mind. Even the angel-kind of 3rd heaven itself, all being ‘spirits’ (living intelligences;
Psa. 104:4;
Heb. 1:7,14, 12:9 KJB) that ‘minister’ with their physical / corporeal hands and bodies (
Psa. 103:20-21 KJB), just as those of mankind also do (
Act. 20:34; Heb. 12:23 KJB).
Exodus 35:21 KJB - And they came, every one whose heart stirred him up, and every one whom his spirit made willing, and they brought the LORD’S offering to the work of the tabernacle of the congregation, and for all his service, and for the holy garments.
1 Chronicles 28:9 KJB - And thou, Solomon my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the LORD searcheth all hearts, and understandeth all the imaginations of the thoughts: if thou seek him, he will be found of thee; but if thou forsake him, he will cast thee off for ever.
Psalms 34:18 KJB - The LORD is nigh unto them that are of a broken heart; and saveth such as be of a contrite spirit.
Psalms 51:10 KJB - Create in me a clean heart, O God; and renew a right spirit within me.
Psalms 51:17 KJB - The sacrifices of God are a broken spirit: a broken and a contrite heart, O God, thou wilt not despise.
Psalms 77:6 KJB - I call to remembrance my song in the night: I commune with mine own heart: and my spirit made diligent search.
Ecclesiastes 1:17 KJB - And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.
Matthew 9:4 KJB - And Jesus knowing their thoughts said, Wherefore think ye evil in your hearts?
Mark 2:8 KJB - And immediately when Jesus perceived in his spirit that they so reasoned within themselves, he said unto them, Why reason ye these things in your hearts?
Luke 2:35 KJB - (Yea, a sword shall pierce through thy own soul also,) that the thoughts of many hearts may be revealed.
Ephesians 4:23 KJB - And be renewed in the spirit of your mind;
Hebrews 4:12 KJB - For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.
2 Timothy 1:7 KJB - For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind.
God the Father is not merely a floating intelligence pervading the created universe, as if having no body or parts, for in that direction, a person will end up in the dual errors of pantheism (God is all things), and / or panentheism (God is in all things). God the Father is
not a ‘perfume’, a mere incorporeal ‘essence’. He is
not an aethereal essence pervading the universe, or as if He were the universe itself, for both of those false teachings are gross heresies that destroy the Gospel itself and would even place God in the sinner, including satan himself, which is a violation of
Rev. 3:20 KJB. God is omnipresent
through omniscience (
Psa. 139:1-24 KJB). What does the Bible say, where God actually is?
Matthew 6:9 KJB - After this manner therefore pray ye: Our Father which art in heaven, Hallowed be thy name. (See also Luk. 11:2 KJB)
Matthew 16:17 KJB - And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.
The 3rd “heaven”, also known as “paradise”, and God’s “garden” of heavenly “eden”, is a real tangible place, just beyond the first (atmosphere;
Gen. 1:20 KJB) and second heavens (local Sol system;
Gen. 1:14-19 KJB), filled with living beings (
Eze. 28:13;
Luk. 23:43;
2 Cor. 12:2,4;
Rev. 2:7, 12:12, 22:2,14 KJB).
The Father dwells there “in heaven” (
Mat. 5:16,45,48, 6:1,9, 7:11,21, 10:32,33, 12:50, 16:17, 18:10,14,19, 23:9;
Mar. 11:25,26;
Luk. 11:3,
Jhn. 12:28, 17:1;
1 Jhn. 5:7 KJB), though by His omniscient mind (
Job 21:22, 40:2;
Psa. 113:5-6;
Isa. 40:13-14, 46:9-10;
Rom. 11:34;
1 Cor. 2:16 KJB) is everywhere present (omnipresent;
1 Kin. 8:27,39;
2 Chr. 2:6, 6:18,30;
Psa. 11:4, 14:2, 53:2;
Pro. 15:11 KJB) by His all-knowing (
Psa. 139:1-24 KJB). He is a
“Person” (
Job 13:8;
Heb. 1:3 KJB), of which His Son (Jesus) is the
“express image” of.
God is local (
Gen. 4:16;
Exo. 19:17,21, 20:21, 33:14-15;
Num. 23:15;
Deu. 5:5;
1 Kin. 19:11 KJB), has dwelt among mankind (
Exo. 25:8, 29:43-45;
Lev. 26:11-12;
1 Kin. 6:11-13, 8:13;
2 Chr. 6:2,18;
Psa. 132:14;
Mic. 1:2;
Hab. 2:20;
Zec. 2:10;
Rev. 21:3 KJB), moves about (
Gen. 17:22, 18:33;
Exo. 19:20;
Num. 12:5, 23:4;
Deu. 33:2;
Jdg. 5:4;
1 Sam. 4:7;
Psa. 47:5, 67:8, 68:7;
Jer. 14:8;
Eze. 11:23;
Mic. 1:3;
Hab. 3:3;
Zec. 2:13 KJB), utilizes modes and means of travel (
2 Sam. 22:11;
Psa. 18:10, 104:3;
Hab. 3:8,15;
Zec. 9:14 KJB), and the Father, and the Son, have been seen in their form (
Gen. 18:1, 35:9, 48:3;
Exo. 24:9-11;
2 Chr. 7:12;
Job 42:5-6;
Isa. 6:1;
Eze. 1:26-27, 8:1-2,4; 43:2-3;
Dan. 7:9-10;
Amo. 9:1;
Rev. 4:2-3 KJB). ..."
As for the word "in", it refers to the Father knowing all there is of the Son, and likewise the Son all there is to know of the Father (Mat. 11:27; Luk. 10:22 KJB). Just as a person who knows another intimately, is also in their mind, by their words and actions remembered / cherished.
For more, please see the chapters recommended. Thank you.