There is communal responsibility.

We who believe in Jesus in a community called church

Have communal responsibility as a member of the boy of the Lord.

For example,  

We must grow in faith not only for ourselves

But also for the whole community.

Also,

We must obey the Word of God

So that we may not sin not only for our own souls but also for the whole community.

In particular,

We must overcome the sin of covetousness.

We must guard ourselves from covetousness.

The reason is because covetousness makes us to extort from others (Ecc. 7:7).

If we have covetousness like Achan

Then we will even steal something from the devoted things (Josh. 6:18).

As a result,

Because of one man Achan’s sin

He troubled the whole Israelites (7:25).

Likewise

I will trouble the whole church members

Because of one person my sin (7:25; cf. 1 Cor. 12:26).