But be sure of this, that if the master of the house had known in exactly what part of the night the thief would come, he would have been on guard and would not have let his house be broken into.

But be sure of this, that if the master of the house had known what time the thief was coming, he would not have let his house be broken into.

I in union with them and you in union with me, so that they may be perfectly united, and the world may be sure that you sent me and that you have loved them just as you have loved me.

for you may be sure that such a man is crooked and sinful, even self-condemned.

you may be sure that whoever brings a sinner back from his evil ways will save the man's soul from death, and cover up a multitude of sins.

In such a hope keep on rejoicing, although for a little while you must be sorrow-stricken with various trials,

By this we can be sure that we know Him -- if we practice obedience to His commands.

but whoever practices obedience to His message really has a perfect love of God in his heart. By this we can be sure that we are in union with Him:

Little children, it is the last hour, just as you have heard that Antichrist is Coming, and already many Antichrists have appeared; so we may be sure that it is the last hour.

By the fact that He has given us a portion of His Spirit we can be sure that we remain in union with Him and He in union with us.

This is how we can be sure that we love the children of God, by continuing to love God and to obey His commands.