Sure there is.Yes it is. Notice what He says; I give them eternal life, and they shall never perish. That is an unconditional statement. The angel that appeared to Joseph told him that he was to call the Son born to Mary, Jesus, for He will save His people from their sins (Matt. 1:21). There is nothing conditional about that.
Firstly, it’s conditional as it only applies to those who are His.
Secondly, those verses fail to answer the question of how do you identify His sheep. His sheep hear His voice . . . . AND follow!
It also fails to address other scriptures that do identify his sheep, or how do you know they are his sheep.
Romans 2:7-8 actually does identify them
To them who by patient continuance in well doing seek for glory and honour and immortality, eternal life:
But unto them that are contentious,†and do not obey†the truth, but obey unrighteousness, indignation and wrath,
There’s lots more that directly lay out the condition. Abiding. That the passages you quote doesn’t address abiding doesn’t prove that it excludes abiding, or that it isn’t necessary, it simply means that the author was focused on something else.