God IS three distinct persons.
Westminster Confessions, chapter 2:
In the unity of the Godhead there be three persons, of one substance, power, and eternity: God the Father, God the Son, and God the Holy Ghost, (
1Jo 5:7;
Mat 3:16-17;
Mat 28:19;
2Co 13:14): the Father is of none, neither begotten, nor proceeding; the Son is eternally begotten of the Father, (
Jhn 1:14;
Jhn 1:18); the Holy Ghost eternally proceeding from the Father and the Son, (
Jhn 15:26;
Gal 4:6).
There is but one only, (
Deu 6:4;
1Co 8:4,
6); living, and true God, (
1Th 1:9;
Jer 10:10); who is infinite in being and perfection, (
Job 11:7-9;
Job 26:14); a most pure spirit, (
Jhn 4:24); invisible, (
1Ti 1:17); without body, parts, (
Deu 4:15-16;
Jhn 4:24;
Luk 24:39); or passions, (
Act 14:11,
15); immutable, (
Jam 1:17;
Mal 3:6); immense, (
1Ki 8:27;
Jer 23:23-24); eternal, (
Psa 90:2;
1Ti 1:17); incomprehensible, (
Psa 145:3); almighty, (
Gen 17:1;
Rev 4:8); most wise, (
Rom 16:27); most holy, (
Isa 6:3;
Rev 4:8); most free, (
Psa 115:3); most absolute, (
Exd 3:14); working all things according to the counsel of His own immutable and most righteous will, (
Eph 1:11); for, His own glory, (
Prov 16:4;
Rom 11:36); most loving, (
1Jo 4:8;
1Jo 4:16); gracious, merciful, long-suffering, abundant in goodness and truth, forgiving iniquity, transgression, and sin, (
Exd 34:6-7); the rewarder of them that diligently seek Him, (
r 11:6); and withal, most just, and terrible in His judgments, (
Neh 9:32-33); hating all sin, (
Psa 5:5-6); and who will by no means clear the guilty, (
Nah 1:2-3;
Exd 34:7).
the part i often notice most is the part where it says God is incomprehensible. Thats the humbling part for me. I tell myself everyday, i can only understand what He deems for me to understand. I am simply too small to completely understand Him, but i do try to get right what He wants me to know.