Some here say they have asked Mary for favors. That would fall under this category:
Unless you believe that the Christian is not dead but enjoys eternal life as Jesus said.
Deuteronomy also says: "When men have a dispute they are to take it to court and the judges will decide the case, acquitting the innocent and condemning the guilty. If the guilty man deserves to be beaten, the judge shall make him lie down and have him flogged in his presence with the number of lashes his crime deserves. . ." (not more than 40.)
And it says "If brothers are living together and one of them dies without a son, his widow mut not marry outside the family. Her husband's brother shall taker and marry her and fulfill the duty of a brother-in-law to her. . .
. . .(and if he won't). ". . .his brother's widow shall go up to him the presence of the elders, take off one of his sandals, spit in his face and say, "This is what is done to the man who will not build up his brother's family line." That man's line shall be know in Israel as The family of the Unsandaled. . ." --Deuteronomy 25
I didn't go looking for those scriptures but just opened my Bible to Deuteronomy and chose the first scriptures I saw. The fact is there is a whole lot of Deuteronomy we read now as sort of history but do not consider it as law we are to follow to this day. So it becomes rather incongruous at best to pick one verse convenient to our argument and ignore all that isn't convenient. I rather think both Jesus and the Apostle Paul urged us to use our God given common sense rather than strict adherence to the Law which can inform us but it must not be 'worshipped' either.
But as a counter argument in Luke 16 we have Jesus' parable of the rich man in hell requesting favors from Abraham in Heaven. The rich man was not worshipping Abraham in any way but was asking him for the favor first of sending Lazarus to cool his tongue and when that was denied to send Lazarus to his brothers to warn them of hell. . ."
An odd parable if it is sinful to petition those in Heaven. . .
All this is to say I believe we should follow the nudging of the Holy Spirit and do what is right for us and others and leaving the spiritual judgment of others to God where it belongs.