My wife takes support from the British government and has two children, you could invite to visit my children with me is knowing that I will pay all costs of the

My wife takes support from the British government and has two children, she can invite me to visit my children is knowing that I will pay all costs of the

Your question is unfinished, and I think it is going to be unclear even if you do.
Please use the Answer button to explain which country you are in, where she is, and what you what to do.
This is a board answered by volunteers, a few of whom may be lawyers, but none of them can invite anyone for you. They can maybe help you know where to ask about inviting your family yourself.

UK has many restrictions in regards to visas. Be specific when you apply for a visa. As a visitor, you must be able to prove that you can afford all expenses on this trip.