missing "By"-- (MW) The untranslated word  means "through," in the midst of," or "by (a cause)."

missing "This"-- (MW) The untranslated word means "from here" or "this/that thing."

Are -- This helping verb is added to make this a question, but the Greek could be either a question or a statement.

you -- This is from the second-person, plural form of the following verb.

not -- The Greek word translated as "not" is the Greek negative used to deny objective facts, not opinions. It makes a negative statement of fact. This word begins the sentence with a "not." Since it doesn't come before a verb, it doesn't negate the whole clause.

in --  (IW) The word "in" doesn't exist in the source and isn't otherwise justified.

err, --  (WF) "Err" is not a noun, but  from a verb that means "to cause to wander", "to lead astray", "to mislead", "to wander", "to stray," and "to be misled." It is in a form where it is either passive of the subject acts on themselves, so either "you are misled" or "you lead yourselves astray."

missing "yourselves"-- (WV) A phrase is necessary because the form of the previous verb is a middle voice, which means that the subject is to  act on "yourselves," "for yourselves" or "by yourselves."

because -- (IW) There is no Greek word that is translated as "because" in the Greek source.

you -- This is from the second-person, plural, masculine form of the following verb. However, the verb is not active, so it is not in the second-person.

do -- (WT) This helping verb put the following verb in the present tense, but it is in the past perfect tense, "having known.)

know --  (WF) The word translated as "know" means primarily "to see" and is used to mean "know' as we use the word "see" to mean "know" in English. It is the past perfect tense so "have seen" but it is translated as the present tense of "know."  What someone "has seen" is what they "know" in the present. Since the past perfect of "see" forms the present tense of "know" the pluperfect tense used here, which indicates an action completed before some other action in the past, is used as the simple past tense, "knew." The form here is a participle, not an active verb, "knowing. The sense is "not wanting to know."  

no  -- (CW) The negative used here is the Greek negative of a subjective opinion, commands, and requests. If not used with a verb of subjective action--thinking, feeling, seeing, etc.--its sense is that "not wanting" or "thinking" something, not that it isn't done or thought.   When a negative precedes the verb, it affects the whole clause. When it precedes other words, its force is limited to those words. This is the negative used with commands or requests. This means that their "knowing" is not consider a fact because they only thing they know.

the -- The word translated as "the" is the Greek definite article. The Greek article is much closer to our demonstrative pronouns ("this", "that", "these", "those"). See this article for more. 

Scriptures,  - - (CW) "Scriptures" is a noun that means "writing", "the art of writing," and "that which is written," so, the "writings." It doesn't have the specific sense of religious writing that "scriptures" does. It might also be worth noting that the Greek word translated as "scriptures" literally means "a drawing." For the Greeks, both drawings and words created a "picture" or a man-made, artificial representation of reality. Its translation as "scripture" is more specific than the word's more general meaning.

nor -- The word for "nor" is the Greek subjective negative plus the Greek word for "but." "But not" works much better than "neither." This Greek word works as a "neither...nor" but only when it occurs in a series.

the -- The word translated as "the" is the Greek definite article. The Greek article is much closer to our demonstrative pronouns ("this", "that", "these", "those"). See this article for more. 

power -- "Power" is from a word that describes abilities and capacities, what actions a person can do or has done so "power", "might", "influence", "authority," and "force." It does not carry the sense of authority over others, either people or laws.

of -- This word comes from the genitive case of the following word(s) that required the addition of a preposition in English.  The most common is the "of" of possession, but it can also mean "belonging to," "part of", "which is", "than" (in comparisons), or  "for", "concerning" or "about" with transitive verbs. 

missing "the" -- (MW) The untranslated word is the Greek definite article. The Greek article is much closer to our demonstrative pronouns ("this", "that", "these", "those"). See this article for more. 

God? -- The word translated as "God" means "God" and "deity." It is introduced with an article, so "the God." Jesus often uses it this way perhaps to indicate the one God as opposed to the pagan gods.