Can Salvation be lost? (Hebrews 6: 6)

I’m sure this is an age old question, and probably not concretely answered by anyone thru the ages. So, I can only read, study, pray and depend on God in His Spirit of Love.

Things that are anchored in my spirit that paint context into this question are:

God is love. 1 John 4:8

He will never leave nor forsake us. Hebrews 13:5

None of those whom the Father has given me are not lost except the son of perdition. John 17:12

His desire is that none would perish, but that all would come to repentance. 2 Peter 3:9

I (Jesus) give them eternal life and they shall never perish, neither shall any pluck them out of my hand. My Father, which gave them to me, is greater than all; and none is able to pluck them out of my Father's hand. John 10:28-29

See also Romans 7-8