That article is full of mistakes here is one really big one.
By RickD
Parable of the sower
The parable of the sower has been used by eternal security skeptics as proof that eternal security does not exist, since Jesus indicates that at least one group "fell away."24 However, if this were a parable about salvation, then there should be only two groups (saved versus not saved) instead of four, as in the parable. The first group does not even understand the gospel message, hence doesn't believe.25 The second group hears the word of God and "receives it with joy," but falls away because of "trouble or persecution."24 The third group hears the word but produces no fruit since they are more concerned about wealth and worries of life.26 Unbelievers are able to recognize the goodness of the gospel, and may play the religion game while there is no cost to them. Both the second and third groups fall into this category. Neither group produces any fruit. It would be quite a stretch saying that these groups represent true believers. True believers always produce some fruit (although the amount of fruit can vary considerably). Since the "seed" in the parable is the preaching of the gospel, it is clear that none of the first three groups ever preached the gospel to others. So, it is quite clear that none of these people were true believers at any point before they "fell away."
Jesus said what the parable was about. Luke 8:11 - 15
11 Now the parable is this: The seed is the word of God.
12 Those by the way side are they that hear; then cometh the devil, and taketh away the word out of their hearts,
lest they should believe and be saved.
13 They on the rock are they, which, when they hear, receive the word with joy; and these have no root,
which for a while believe, and in time of temptation fall away.
14 And that which fell among thorns are they, which, when they have heard, go forth, and are choked with cares and riches and pleasures of this life, and bring no fruit to perfection.
15 But that on the good ground are they, which in an honest and good heart, having heard the word, keep it, and bring forth fruit with patience.
If you read Jesus's explanation He makes it clear He is talking about 4 different groups of people.
Not about people preaching to others but that He is referring to the people that are being preached to.
Not only that but He makes it clear that we are saved by faith alone.
"lest they should believe and be saved"
Not only that but that you can believe then later stop believing.
"which for a while believe, and in time of temptation fall away"
Then He separated those who have fruit from those that have no fruit.
Jesus said you can stop believing then I believe you can stop believing.