The Unattainable Ideal of Sinlessness
The religious teachings reflected in the provided quotes emphasize the unique nature of sinlessness. Absolute, personal sinlessness is fully embodied in the person of Jesus Christ. For example, one of the sources states:
"With freedom from original sin, revelation imparts to Jesus Christ a complete and perfect personal sinlessness. This kind of sinlessness should be understood not only in terms of Jesus Christ’s moral superiority over all who have ever lived... but also in the sense that Jesus Christ, throughout His life, did not commit any sinful act and is free from any hidden sinfulness" (source: link txt, page: 405).
Another text confirms that even in His public statements, Jesus Christ demonstrated an awareness of His sinlessness:
"Thus, even Jesus Christ, without fearing reproach from even His fiercest enemies, openly asked them: who among you will accuse Me of sin... All this shows that Jesus Christ recognized Himself as sinless" (source: link txt, page: 406).
On the other hand, for an ordinary person, achieving such absolute sinlessness seems an extremely difficult task. One teaching points out that true communion with God and the knowledge of God are impossible for a person mired in sin, and that without constant struggle against evil and sincere repentance, one cannot reach a state close to the ideal:
"Sinlessness or passionlessness is obviously impossible without the struggle against evil, and this struggle takes a thousand forms and requires incessant vigilance and effort" (source: link txt).
It is also noted that despite the presence of original sin as a general weakness, personal freedom from sin can be achieved through God’s grace. Examples of this state in the experience of believers are represented by the figures of John the Baptist, the Immaculate Virgin Mary, and, most importantly, Jesus Christ (source: link txt).
Thus, in the context of these religious teachings, complete sinlessness is seen primarily as a unique state inherent to the God-Man, embodied in Jesus Christ, and for other people, it remains an ideal achievable only through constant spiritual struggle, repentance, and divine grace.