'Burdened' in the Bible

"Come to me, all you toiling and burdened ones, and *I* will give you rest.

If a believing woman has widows dependent on her, she should relieve their wants, and save the Church from being burdened--so that the Church may relieve the widows who are really in need.

For then would not the sacrifices have ceased to be offered, because the consciences of the worshippers--who in that case would now have been cleansed once for all--would no longer be burdened with sins?