Note 1 at 1Co 16:1: Paul was talking about money. There were different types of gifts sanctioned by the example of the first-century church.

First, there were gifts given to the poor. That is what Paul was referring to here (compare with Ro 15:25-26). In Ac 11:27-30, the saints at Antioch took up an offering for the saints in Jerusalem because of a prophecy given by Agabus the prophet that there would be a drought. Paul was admonished by the apostles in Jerusalem that he was to minister to the poor financially (Ga 2:9-10), and Paul passed this commandment on to those he ministered to (Ac 20:35; Ro 12:13, 15:27; 2Co 8-9; and 1Ti 6:18). There are an abundance of Old Testament scriptures that encourage ministering to the poor with our finances (Le 25:35; De 15:7-11; Ps 41:1-3; Pr 14:21, 19:17, 22:9, and 28:27), and New Testament scriptures (Heb 6:10 and 1Jo 3:17) as well as examples (Ac 2:44-45, 4:34-37, and 6:1) bear this out.

Paul also made it clear that ministers are to be supported financially by those they minister to (1Co 9:7-14, Ga 6:6, and 1Ti 5:17-18). Paul voluntarily exempted himself from this practice in Corinth and Thessalonica (see note 5 at 1Co 9:6), but he did receive personal offerings from the Philippians on more than one occasion (Php 4:10-19). In the O.T., the Lord commanded the Israelites to maintain the priests and Levites (ministers) with their offerings (De 14:27-29, 18:1-2; and 2Ch 31:4-20).

In 1Co 16:6, Paul was soliciting what we would call today a missions offering (see note 2 at 1Co 16:6). This is what he referred to in Ro 10:15 as those who send.

There is no N.T. example of the believers giving toward building projects. Since the Christians met in homes, this wasn't necessary. However, there are O.T. examples of the Lord commanding offerings for the construction of the tabernacle (Ex 25:1-8) and a compulsory offering (tax) for the maintenance of the tabernacle (Ex 30:11-16).

So, there are at least four areas of giving clearly advocated in Scripture: giving to the poor, giving to ministers, giving to missions, and giving to pay for facilities.