Leviticus 11:1-8
11:1 The LORD spoke again to Moses and to Aaron, saying to them, 2 "Speak to the sons of Israel, saying, 'These are the creatures which you may eat from all the animals that are on the earth. 3'Whatever divides a hoof, thus making split hoofs, and chews the cud, among the animals, that you may eat. 4'Nevertheless, you are not to eat of these, among those which chew the cud, or among those which divide the hoof: the camel, for though it chews cud, it does not divide the hoof, it is unclean to you. 5'Likewise, the rock badger, for though it chews cud, it does not divide the hoof, it is unclean to you; 6 the rabbit also, for though it chews cud, it does not divide the hoof, it is unclean to you; 7 and the pig, for though it divides the hoof, thus making a split hoof, it does not chew cud, it is unclean to you. 8'You shall not eat of their flesh nor touch their carcasses; they are unclean to you.
NAS
This is part of the Law. Here is what you posted from 1 John:
1 John 3:4 - Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.
Is it a sin to eat pork, lobster, fish without scales, and etc.?
Leviticus 23:4-8
4'These are the appointed times of the LORD, holy convocations which you shall proclaim at the times appointed for them. 5'In the first month, on the fourteenth day of the month at twilight is the Lord's Passover. 6'Then on the fifteenth day of the same month there is the Feast of Unleavened Bread to the LORD; for seven days you shall eat unleavened bread. 7'On the first day you shall have a holy convocation; you shall not do any laborious work. 8'But for seven days you shall present an offering by fire to the LORD. On the seventh day is a holy convocation; you shall not do any laborious work.' "
NAS
This is part of the Law. Are you telling us that we must observe the Feast of Unleavened Bread and the Passover as well as the other mandated holy convocations refrain from eating foods not listed in Leviticus since not keeping these Laws are transgressing the Law and therefore is sin?