Ephesians 6:4
And you fathers [Note: This word probably includes both parents], do not stir up your children to become angry, but bring them up in the training and instruction of the Lord.
Luke 8:18
Pay attention to how you listen, for to the person who [already] has something, [more] will be given, but from the person who has [virtually] nothing, even what he thinks he has will be taken away from him."
Hebrews 2:1
So [then], we [Christians] should pay closer attention to the things we have heard, so that we do not drift away from [believing and practicing] them.
Hebrews 2:3
how will we escape [punishment] if we neglect such a great salvation? [For it was] first announced [to people] by the Lord and then confirmed to us [i.e., the writer and other Christians] by those who heard Him [i.e., the original apostles].
James 2:22
[Do you not] see that faith cooperated together with his deeds, and faith was made complete by [his] deeds?
Revelation 3:3
So, remember how you have received and heard the message [i.e., they had eagerly accepted the Gospel]; [now] obey it and repent. For if you do not become [spiritually] alert, I will come as a thief [i.e. unexpectedly] and you will not know the [exact] time that I will come upon you [in judgment. See 2:16, 25].