Possible meaning are 1) "know this" as a command to pay attention to what I am about to write or 2) "You know this" as a statement that I am about to remind you of something that you already know.
## Every man must be swift to hear, slow to speak ##
People should first listen intently, and then consider carefully what they say.
## slow to anger ##
"do not get angry easily"
## the anger of man does not work the righteousness of God ##
When a person gets angry he does not behave the way God desires.
Here the words "sinful filth" and "evil" share similar meanings. James uses them to emphasize how bad sin is. AT: "stop doing every kind of sinful behavior" (See: [[rc://en/ta/man/translate/figs-doublet]])
The word "implant" means to place one thing inside of another. This is a metaphor describing God's word as something planted inside of a person. AT: "obey the message God has spoken to you." (See: [[rc://en/ta/man/translate/figs-metaphor]])
## save your souls ##
Here, the word "souls" is a synecdoche and refers to the entire person. Also, what a person is saved from can be made explicit. AT: "save you from God's judgment." (See: [[rc://en/ta/man/translate/figs-synecdoche]] and [[rc://en/ta/man/translate/figs-explicit]])