In other words, Buddhism is strictly 'impersonal' where as Christianity is 'personal', where salvation is based on a personal relationship between the 'small-self' and& a personal god (Christ & The Father).
For example, Matthew 16:25 states:
Whoever loses his life for My sake will find it.
Luke 23:42 states:
He understands: ‘It is impossible, it cannot happen that a person possessing right view could acknowledge another teacher ― there is no
such possibility.’ And he understands: ‘It is possible that an
ordinary person might acknowledge another teacher ― there is such a
possibility.’
He understands: ‘It is impossible, it cannot happen that two Accomplished Ones, Fully Enlightened Ones, could arise
contemporaneously in one world-system ― there is no such possibility.’
And he understands: ‘It is possible that one Accomplished One, a Fully
Enlightened One, might arise in one world-system ― there is such a
possibility.
MN 115