But -- (CW) The Greek word translated as "but" denotes an exception or simple opposition. It is used to emphasize the contrast between things like we use "instead," "but instead,"or "rather." It is not the common word usually translated as "but." It is the Greek word "other" like we use "otherwise." Jesus often uses this conjunction to connect a negative clause, not doing something, with a positive one, "instead do this."

there -- When the verb "to be" appears early in the clause before the subject, the sense is more like "it is" or, in the plural, "there are."

are -- The verb "are" here is the common form of "to be" in Greek. It means to have a certain characteristic or remain in a certain condition. It also equates terms or assigns characteristics. With the genitive object, the sense is "belongs to."

some -- The Greek word translated as "some" in the singular means "anyone," "someone,"  "something," and "anything." In the plural, it means "some," "they," and "those."

of  -- (CW) The Greek preposition translated as "of" means "out of" or "from." The word also means "beyond," "on," "in," "since," or "by"based upon its context. However, in Greek, they use the genitive case instead of a preposition for the types of phrases that are translated into English "of" phrases.

you  -- The word translated as "your" is a plural, second-person pronoun in the genitive case.

that . -- The word translated as "that" is a demonstrative pronoun ("this" "that"), but it often acts as a pronoun "which," "what," "who," "whosoever," "where," "for which reason," and many similar meanings.

believe -- The Greek word translated as "believe" does not apply to religious belief as much as it does trusting in other people, especially their word. Christ usually uses it in contexts, as the one here, that apply to trusting words. The negation of "belief" with the objective, instead of subjective, negative, equates trust with a fact.

not. -- The Greek word translated as "not" is the Greek negative used to deny objective facts, not opinions. It means "no," "not," or"no truly." It makes a negative statement of fact. Adding "really" to the sentence captures the same idea. When a negative precedes the verb, it affects the whole clause. When it precedes other words, its force is limited to those words.

When the verb "to be" appears early in the sentence before the subject, the sense is more like "it is" or, in the plural, "there are."

The Greek preposition translated as "of" means "out of" of "from." In Greek, they use the genitive case instead of a preposition for the types of phrases with usually use with "of."

The Greek word translated as "some" has a lot of uses including . In this case, it is the plural version "anyone", "someone," and "anything." In the plural, it means "some", "they," and "those."

The word translated as "that" is a demonstrative pronoun, but it often acts as a pronoun, especially a connective pronoun introducing a dependent clause.

The Greek word translated as "not" is the Greek negative used to deny objective facts, not opinions. The fact that it is used to negate the verb for "belief," which is usually a matter of opinion, is somewhat humorous because it is extreme. The sense is almost that they cannot trust.

The Greek word translated as "believe" does not apply to religious belief as much as it does believing in other people, especially their word. Christ usually uses it in contexts, as the one here, that apply to trusting words. The negation of "belief" with the objective, instead of subjective, negative, equates trust with a fact.