If you are deaf, blind, mute and completely paralyzed... that means it's impossible for you to sin right?
Does this mean that if they become COMPLETELY without sin... that it makes them the Son of God?
Isn't that the very defining characteristic of God?
That it is the person WITHOUT a single sin?
Depends on how you define Sin... To sin can be simply missing the mark!
Gen 39:9 "There is no one greater in this house than I, and he has withheld nothing, from me except you, because you are his wife. How then could I do this great evil and
sin H2398 against God?"
H2398
ֶחְטָאה
ḥeṭ’āh, ָחָטא
ḥāṭā’: A verb meaning
to miss the mark, to wrong, to sin, to lead into sin, to purify from sin, to free from sin. Four main Hebrew words express the idea of sin in the Hebrew Bible, with this word used most often. Its central meaning is to miss the mark or fail.
It is used in a nonmoral or nonreligious sense to indicate the simple idea of missing or failing in any task or endeavor. In Jdg_20:16, it indicated the idea of a slinger missing his target. The verb also indicated the situation that arose when something was missing (Job_5:24); or it described a failure to reach a certain goal or age (Pro_19:2; Isa_65:20). These are minor uses of the verb. The word is used the most to describe human failure and sin.
It indicates failure to do what is expected; the one who fails to find God in this life destroys himself (Pro_8:36). Many times the word indicates being at fault (Gen_20:9; Exo_10:16; 2Ki_18:14; Neh_6:13) as Pharaoh was toward Moses or to be guilty or responsible (Gen_43:9; Gen_44:32). It regularly means to sin; Pharaoh sinned against God (Exo_10:16). People can also sin against other human beings (Gen_42:22; 1Sa_19:4-5)
or against their own souls (Pro_20:2). The verb is used to indicate sin with no object given, as when Pharaoh admitted flatly that he had sinned (Exo_9:27; Jdg_10:15) or when Israel was described as a "sinful nation" (Isa_1:4). Sometimes the writer used the noun from this same verbal root as the object of the verb for emphasis, such as in Exo_32:30-31, where Moses asserted that Israel had sinned a great sin (Lev_4:3; Num_12:11). Sinning, unfortunately, is a universal experience, for there is no one who does not sin (Ecc_7:20). Persons may sin with various parts of their bodies or in certain ways or attitudes. They may sin with their tongues or lips (Job_2:10; Psa_39:1 [2]). Persons may sin innocently or in such a way as to bring guilt on others (Lev_4:2-3; Num_15:27).
Three other stems of this verb are used less often. The intensive stem is used to indicate people bearing their own material losses or failures (Gen_31:39); one freeing oneself from sin or purifying an object or person (Lev_8:15; Psa_51:7 [9]); and one bringing a sin offering (Lev_6:26 [19]; 2Ch_29:24). The causative stem, besides indicating failure to miss a literal target, means to lead into sin, to lead astray. Jeroboam was an infamous king who caused all Israel to walk in sin (1Ki_14:16; 1Ki_15:26). The reflexive stem communicates the idea of freeing oneself from sin. The Levites purified themselves (i.e., set themselves apart from sin) so they could work at the sanctuary (Num_8:21).
It would seem Sin is Sin, even in a desire to be totally moral, yet miss the mark! 
Paul
