At last, it became necessary, for his support, to sell his wife's jewels; and being reduced, as he said, at last "to the rump-jewel," he solicited, from Cromwell, permission to return, and obtained it by the interest of colonel Scroop, to whom his sister was married. Upon the remains of a fortune which the danger of his life had very much diminished, he lived at Hall Barn, a house built by himself very near to Beaconsfield, where his mother resided. His mother, though related to Cromwell and Hampden, was zealous for the royal cause, and, when Cromwell visited her, used to reproach him; he, in return, would throw a napkin at her, and say he would not dispute with his aunt; but finding, in time, that she acted for the king, as well as talked, he made her a prisoner to her own daughter, in her own house. If he would do any thing, he could not do less.
Cromwell, now protector, received Waller, as his kinsman, to familiar conversation. Waller, as he used to relate, found him sufficiently versed in ancient history; and when any of his enthusiastick friends came to advise or consult him, could, sometimes, overhear him discoursing in the cant of the times; but, when he returned, he would say: "Cousin Waller, I must talk to these men in their own way;" and resumed the common style of conversation.
He repaid the protector for his favours (1654) by the famous Panegyrick, which has been always considered as the first of his poetical productions. His choice of encomiastick topicks is very judicious; for he considers Cromwell in his exaltation, without inquiring how he attained it; there is, consequently, no mention of the rebel or the regicide. All the former part of his hero's life is veiled with shades; and nothing is brought to view but the chief, the governour, the defender of England's honour, and the enlarger of her dominion. The act of violence, by which he obtained the supreme power, is lightly treated, and decently justified. It was, certainly, to be desired, that the detestable band should be dissolved, which had destroyed the church, murdered the king, and filled the nation with tumult and oppression; yet Cromwell had not the right of dissolving them, for all that he had before done could be justified only by supposing them invested with lawful authority. But combinations of wickedness would overwhelm the world, by the advantage which licentious principles afford, did not those, who have long practised perfidy, grow faithless to each other.