One who inquires the foundation of mission in Bible has a serious task at hand. In the past the usual method was to pull a series of proof-texts out of the Old and New Testaments and then to consider the task accomplished. But more recently biblical scholars have taught us the importance of reading the texts in context and paying due regard to the various nuances. The proof-text method does not fill the bill; one must consider the very structure of the whole biblical message.
Our best help comes from biblical studies which are carried out with great attention to the basic structure of the biblical message in all its nuances as it relates to the mission mandate and which help us relate the message to the present situation by providing hermeneutical pointers in addition to the exegetical material.