JOEL - Acts 16:15, 32-33 -
"And when she was baptized, and her household, she besought us, saying, If ye have judged me to be faithful to the Lord, come into my house, and abide there. And she constrained us.
And they spake unto him the word of the Lord, and to all that were in his house.
And he took them the same hour of the night, and washed their stripes; and was baptized, he and all his, straightway." (Acts 16:15, 32-33)

I don't see any mention of infants in the household in these scriptures. Under Jewish customs, infants would not be counted as part of the household anyway. Besides this verse 31 says:

"And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house."

Infants are not capable of believing in anything.

Acts 2: 38, 39
"Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call. (Acts 2: 38, 39)

These scriptures do mention children but not infants.I have children. They are all adults now but still my children.
Verse 38 says,
"Repent, and be baptized".
Infants are incapable of sin and therefore cannot nor need not repent, and therefore need no baptism.

Jesus said:
"But Jesus said, Suffer little children, and forbid them not, to come unto me: for of such is the kingdom of heaven."

DANIEL - Why do Latter-day Saints insist on baptism by immersion when the jailer in Acts was baptised in his own home where there wouldn't have been any immersion of water?

JOEL - Here are those scriptures again:

"And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.
And they spake unto him the word of the Lord, and to all that were in his house.
And he took them the same hour of the night, and washed their stripes; and was baptized, he and all his, straightway.
And when he had brought them into his house, he set meat before them, and rejoiced, believing in God with all his house." (Acts 16:31-34)

It says he "took them" to be baptized, and then it says that after they were baptised he brought them "into" his house, which means they were not in the house when they were baptized. He could have taken them anywhere outside his house where there was enough water to immerse them.

DANIEL - According to the teachings of Mormons, there are some sins that cannot be foregiven. If so, how can one explain 1 John 1:7?

JOEL - "But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin." (1 John 1:7)

If every single sin can be forgiven then how do you explain the following scriptures:

"And whosoever shall speak a word against the Son of man, it shall be forgiven him: but unto him that blasphemeth against the Holy Ghost it shall not be forgiven." (Luke 12: 10, Matt. 12: 31, Mark 3: 29)

"For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins," (Heb 10:26)

The way we understand this is explained in our scripture:

"The blasphemy against the Holy Ghost, which shall not be forgiven in the world nor out of the world, is in that ye commit murder wherein ye shed innocent blood, and assent unto my death, after ye have received my new and everlasting covenant, saith the Lord God; and he that abideth not this law can in nowise enter into my glory, but shall be damned, saith the Lord." (D&C 132:27)

Blasphemy against the Holy Ghost and murder are the only sins we believe that there is no forgiveness for, and this only applies to those who have become members of God's church or "have received the knowledge of the truth"(Heb. 10:26) and received His everlasting covenant(D&C 132:27).
So it is possible that someone who murders or commits any other sin, who is not a member of the church, can receive forgiveness for all sins as that scripture says.

DANIEL - In the New Testament, we read that priests offered sacrifices (I believe such references are included in Hebrews). If LDS Priests are indeed Biblical and legitimate priests, why don't they offer sacrafices?

JOEL - Peter answers this question quite well:

"Ye also, as lively stones, are built up a spiritual house, an holy priesthood, to offer up spiritual sacrifices, acceptable to God by Jesus Christ. (1 Pet. 2: 5)

And Paul in Hebrews said:

"By him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to his name.
But to do good and to communicate forget not: for with such sacrifices God is well pleased." (Heb 13:15-16)

Animal sacrifices were done away with after Jesus came and sacrificed Himself for us, fulfilling the law of Moses. The Priests mentioned in the New Testament and the Priests in our church offer "spiritual sacrifices" on a daily basis as they preform acts of service("do good") for the church and friends, family, and neighbors.

DANIEL - About the LDS belief in the 3 degress of glory - doesn't the idea of a vile sinner receiving some glory unjust and fails to deter a sinner from changing?

JOEL - It just shows how merciful God is to even a vile sinner. Most vile sinners don't change because they're afraid of where they might end up in the next life. Chances are they are not even sure there is a next life. They change when they realize how miserable their life is now and when they want to find a purpose for their life and they are touched by the spirit of God with a desire to do what's right so they can return to God again.

DANIEL - Aren't the health regulations in the Word of Wisdom contrary to the Bible (e.g. 1 Tim 4:4 and Col. 2:16)? Moreover, how come alcohol is prohibited (or, in Smith's time, restricted to moderation) when the Bible speaks contrary to this? (e.g. see 1 Tim 3:18 and 5:23; Titus 2:3; 1 Peter 4:3 and Deut. 14: 24-26)

JOEL -

"For every creature of God is good, and nothing to be refused, if it be received with thanksgiving: (1 Tim 4:4)

"Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days: (Col 2:16)

I don't see how these are contrary to the Word of Wisdom(D&C 89). We are not told to abstain from meats like a vegetarian, we are told the beasts and fowls are here for us to use, but that we are told to eat meats sparingly.

"Yea, flesh also of beasts and of the fowls of the air, I, the Lord, have ordained for the use of man with thanksgiving; nevertheless they are to be used sparingly;" (D&C 89:12)

All the other scriptures are talking about wine, which back then had almost no alcohol compared to what we have in wine and other drinks today. Knowing this God has advised us in these latter days to avoid drinks containing alcohol(D&C 89:5-7).

By the way, notice the scripture says:
"Let no MAN therefore judge you in meat, or in drink,"(Col 2:16).
It is not man who judges us concerning what we should eat or drink, it is God through His scriptures and revelations.