To everyone directly above: if they don’t have Jesus, then they don’t have the same God as us. The Bible says that clearly: “Whosoever denieth the Son, the same hath not the Father” (I John 2:23). If you claim they do have the same God, Saint John says they don’t.
…And so does our Lord. Like I said: the sine qua non for knowing the Father, is the Son: “ He that hath seen Me hath seen the Father; no man cometh unto the Father, but by Me ” (St. John 14:6, 9).
You are confusing speculative and affective knowledge of God, as well as the salvific relationship established with God through supernatural faith, vs that natural knowledge of God available to all by reason (which, of itself, is not salvific).
Your second verse, for example, is speaking of union with Christ through faith and charity as the only means by which we have communion with the Father.
The same with the first quote. To “have the Father” means more than just a speculative knowledge of God, but rather an affective knowledge of the Trinity–to affectively know the only begotten Son is to know the consubstantiatial begetting Father and vice versa.
Others in Scripture are said to worship the one God, without faith in the Trinity, as is mentioned in Acts 17:22-29 and Romans 1:19.
In his commentary on the Gospel of John, St. Thomas comments (par. 2265) on how a quote from Our Lord about those without faith not knowing God are reconciled to passages which say they did or can know God:
“But this seems to conflict with Romans (1:19) ‘For what can be known about God is plain to them. Ever since the creation of the world his invisible nature, namely, his eternal power and deity, has been clearly perceived in the things that have been made.’ We should say to this that knowledge is of two kinds: one is speculative, and the other affective.” Specifically, St.Thomas notes Our Lord was saying that those with speculative, but not affective knowledge “did not know God as the Father of an only begotten and consubstantial Son ‑ and our Lord is talking about knowledge of these things.”
In fact, he goes on to mention other errors those with speculative knowledge might have, acknowledging that some even “worshiped other gods along with Him.”