General Welfare clause

The General Welfare clause is a clause found in Article I, Section 8 of the Constitution of the United States of America. It is found int the following sentence:

The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States

In modern treatment, the General Welfare clause is frequently used to argue that congress has a blanket power to provide for the general welfare. However, this defies both original intent and the basic rules of grammar. It also makes legal analysis hopelessly complicated and introduces many avenues for tyranny.

Intent

"the laying of taxes is the power, and the general welfare the purpose for which the power is to be exercised. They [Congress] are not to lay taxes ad libitum for any purpose they please; but only to pay the debts or provide for the welfare of the Union. In like manner, they are not to do anything they please to provide for the general welfare, but only to lay taxes for that purpose."

Grammar

As is common in the English language, there are multiple ways to parse the sentence.

Generally, "the Congress" is the subject, and "shall have" is the verb (with "shall" being an auxiliary verb).

Congress is definitely going to have power, but the following phrases are a bit trickier, which confounds many readers.

The preposition, "To" describes a broad type of relationship between words. It can relate the following phrase to the preceding noun (eg. I saw the road to Timbuktu.) or it can relate the phrase to the action, functioning adverbially. (eg. I sent the package to Timbuktu.) It might even be used ambiguously, or dually. (I traveled the road to Timbuktu.)

Hence we might imagine that congress shall have power, for the purpose of laying and collecting taxes, duties, imposts, and excises, or we might imagine that laying and collecting Taxes, Duties, Imposts and Excises is descriptive of the power that congress shall have. (ie. The power is laying and collecting taxes, duties, imposts, and excises).

In reality, both interpretations seem valid and function equivalently for all practical purposes. That is, if the sentence is describing the purpose, then that purpose limits the scope of generic power to the laying and collecting of taxes, duties, imposts, and excises, effectively making it so that the power is the laying and collecting of taxes, duties, imposts, and excises. but most people will read the sentence in the latter way. It is irrelevant though.

However, now we come to the clause where the general welfare is mentioned, and it begins with another "to", and similarly, this can be directly describing a relationship with the preceding noun, or with the action. Hence we have 2x2 = 4 interpretations:

1. The Congress shall have Power for the purpose of laying and collecting Taxes, Duties, Imposts and Excises, for the purpose of paying the Debts and providing for the common Defence and general Welfare of the United States
2. The Congress shall have Power for the purpose of laying and collecting Taxes, Duties, Imposts and Excises, which laying and collecting of Taxes, Duties, Imposts and Excises is toward the object of paying the Debts and providing for the common Defence and general Welfare of the United States
3. The Congress shall have Power, being power to lay and collect Taxes, Duties, Imposts and Excises, for the purpose of paying the Debts and providing for the common Defence and general Welfare of the United States
4. The Congress shall have Power, being power to lay and collect Taxes, Duties, Imposts and Excises, which laying and collecting of Taxes, Duties, Imposts and Excises is toward the object of paying the Debts and providing for the common Defence and general Welfare of the United States

If there were an 'and' before the second "to", (ie "... Excises, and to pay the Debts ..."), then the second clause is joined to the first and describe a relationship to the same part of the preceding phrase, either the power, or the action. Then, an interpretation whereby the General Welfare clause is identifying a power, or, equivalently, a purpose for which generic power is permissibly wielded, becomes possible, and even necessary. However, there is no "and" to serve that purpose, and if we were to imagine that it would become extremely awkward to suggest that it was intentionally omitted, or that it was accidentally omitted. Especially given the exegesis provided by Thomas Jefferson on the meaning, we must admit that the sentence was not simply poorly constructed, but as intentionally constructed, such that, however it is read, the General Welfare clause acts as a qualifier on the power of congress to tax, rather than as a separate power apart from taxation.