1Timothy 1:17 Now unto the King eternal, immortal, invisible, the only wise God, be honour and glory for ever and ever. Amen.
‘Now unto the King eternal, immortal, invisible, the only wise God.’ Four facts about God the Father:  The King eternal [Greek: basilei, ton and aionon] meaning the King of the Ages (cp. Isa. 9:6; Jer. 10:10).  Immortal [Greek: aphthartos] incorruptible. The same word translated to show the spirit and soul of man as not being corruptible (1Pet. 3:4); and other things as being incorruptible and immortal (Rom. 1:23; 1Cor. 9:25; 15:52; 1Pet. 1:4, 23). If God is immortal, and man’s spirit is immortal (1Pet. 3:4), then it is a settled fact that the inner man is just as immortal as God.  Invisible [Greek: aoratos] (Col. 1:15-16; Rom. 1:20; Heb. 11:27). The word means not in sight, unseen, or concealed. Invisibility consists more of distance than substance. Cities or other material objects cannot be seen even 30 kilometres away. At this distance they are invisible. Objects concealed are invisible. Anything out of eyesight is invisible. God, angels, and other spirit beings are thus invisible. They can appear or disappear at will. They have been seen with the natural eyes many times, proving that invisibility must be understood with them as with all other invisible things that can become visible.  The only wise God (cp. 1Tim. 6:16). God is the source of wisdom and immortality. But He is not the only one that has wisdom and immortality, for Christ, the Holy Spirit, angels, and the inner man also have wisdom and immortality.
There are eighteen proofs that God can be seen: God has been seen with a body (John 4:24). Man was made bodily in God’s image (Gen. 1:26-27; 9:6). God ate food with Abraham (Gen. 18:8). Jacob wrestled with God (Gen. 32:24). Seventy-four men ate with God (Ex. 24:1-11). Moses saw God face to face out of His glory (Ex. 33:11; 1Tim. 6:16), and he saw His back parts when he requested to see His glory (Ex. 33:18-23). Joshua and all Israel saw Him (Jos. 5:13-15). Gideon saw God (Jdg. 6:11-23). Samson’s parents saw Him (Jdg. 13:3-23). David saw God (1Chron. 21:16-17). Job saw God (Job 42:5). Isaiah saw and described God (Isa. 6:1-13). Amos saw the Lord (Amos 9:1). Ezekiel described God (Ezek. 1:26-28; 10:20; 40:3 with Ezek. 43:7; 7; 47:1-6). Daniel described God, even His clothes, body, and hair (Dan. 7:9-14; 10:5-6). Stephen saw God and Christ (Acts 7:56). John described God (Rev. 4:2-5; 5:1-7). All will see God (Rev. 21:3-4; 22:4).