> For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. — John 3:16 (NIV)
That is your choice of a "very clear meaning"?! Ok, then do you believe man goes to heaven through faith alone, or by faith and actions that prove their faith?
Because a billion Protestants would say that the verse tells you it is by faith alone, and a billion Catholics will quote James 2 20:24 in saying that faith without works is useless:
"You foolish person, do you want evidence that faith without deeds is useless? 21 Was not our father Abraham considered righteous for what he did when he offered his son Isaac on the altar? 22 You see that his faith and his actions were working together, and his faith was made complete by what he did. 23 And the scripture was fulfilled that says, “Abraham believed God, and it was credited to him as righteousness,” and he was called God’s friend. 24 You see that a person is considered righteous by what they do and not by faith alone."