'Laziness' in the Bible

For in what is it that ye have been inferior to the other assemblies, unless that I myself have not been in laziness a charge upon you? Forgive me this injury.

Behold, this third time I am ready to come to you, and I will not be in laziness a charge; for I do not seek yours, but you; for the children ought not to lay up for the parents, but the parents for the children.