New Revised Standard Version
They shall not defile themselves by going near to a dead person; for father or mother, however, and for son or daughter, and for brother or unmarried sister they may defile themselves.

Contemporary English Version
Touching a dead body will make a person unclean. So a priest must not go near a dead body, unless it is one of his parents or children, or his brother or unmarried sister.

New American Bible
They shall not make themselves unclean by going near a dead body; only for their father, mother, son, daughter, brother, or unmarried sister may they make themselves unclean.

Douay-Rheims Bible
And they shall come near no dead person, lest they be defiled, only their father and mother, and son and daughter, and brother and sister, that hath not had another husband: for whom they may become unclean.

And they shall come near no dead person, lest they be defiled, only their father and mother, and son and daughter, and brother and sister, that hath not had another husband: for whom they may become unclean.

Leviticus 21:1-6 The Lord said also to Moses: Speak to the priests the sons of Aaron, and thou shalt say for them: Let not a priest incur an uncleanness at the death of his citizens. . . .

Leviticus 22:4 The man of the seed of Aaron, that is a leper, or that suffereth a running of the seed, shall not eat of those things that are sanctified to me, until he be healed. He that toucheth any thing unclean by occasion of the dead: and he whose seed goeth from him as in generation:

Matthew 8:21,22 And another of his disciples said to him: Lord, suffer me first to go and bury my father. . . .

Luke 9:59,60 But he said to another: Follow me. And he said: Lord, suffer me first to go and to bury my father. . . .

2 Corinthians 5:16 Wherefore henceforth, we know no man according to the flesh. And if we have known Christ according to the flesh: but now we know him so no longer.

1 Thessalonians 4:13-15 And we will not have you ignorant brethren, concerning them that are asleep, that you be not sorrowful, even as others who have no hope. . . .