“Choose you this day whom ye will serve… as for me and my house, we will serve the Lord” makes a good slogan. Growing up, we had a plaque with the latter part of Joshua 24:15 on our front door.
With no context around the phrase, “Choose you this day whom ye will serve,” it sounds like Joshua is giving an exhortation to “choose wisely” and “choose to serve the Lord (like me and my house).” However, the full verse indicates that the choice being offered is not a choice as to whether to serve the Lord or not. The choice being offered is a choice between false gods: “And if it seem evil unto you to serve the Lord, choose you this day whom ye will serve; whether the gods which your fathers served that were on the other side of the flood, or the gods of the Amorites, in whose land ye dwell.” Joshua is offering a choice to those who have already decided to reject God; he is saying, “here are your alternatives.” Maybe the first part of Joshua 24:15 doesn’t make such a good slogan for a piece of decorative art work after all!
In the broader context of the whole chapter, Joshua is giving an exhortation to “choose wisely” and to serve the Lord. In the preceding verse (14), he says, “Now therefore fear the Lord, and serve him in sincerity and in truth: and put away the gods which your fathers served on the other side of the flood, and in Egypt; and serve ye the Lord.” And in the following verse (16), the people reject his alternative choices, saying, “God forbid that we should forsake the Lord, to serve other gods.” Joshua warns the people of the consequences should they fail to uphold their commitment, but they insist (24), “The Lord our God will we serve, and his voice will we obey.”
So, does the fact that the broader context gives the Israelites a choice between serving the Lord and serving other gods justify using “choose you this day whom ye will serve” from verse 15 in that sense? I think not. Truth is too often twisted and misconstrued, which only gives people more reason to accept the notion that truth is relative. Christians especially must be precise and accurate in our assertions of what is true. We should not use a passage of Scripture in a sense that is not what the passage is actually saying, even if our usage is consistent with a principle that is true. We must allow Scripture to say what it actually says, not use it to say something different.