'Things' in the Bible

And these [things] we write, in order that our joy may be complete.

My little children, I am writing these [things] to you in order that you may not sin. And if anyone sins, we have an advocate with the Father, Jesus Christ the righteous [one],

Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him,

These [things] I have written to you concerning the ones who are trying to deceive you.

And [as for] you, the anointing which you received from him remains in you, and you do not have need that anyone teach you. But as his anointing teaches you about all [things], and is true and is not a lie, and just as it has taught you, you reside in him.

that if our heart condemns us, that God is greater than our heart and knows all [things].

These [things] I have written to you who believe in the name of the Son of God, in order that you may know that you have eternal life.